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      "message_received": "สวัสดีค่ะ",
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      "slices": "(อาจารย์เชาวนี) สวัสดีค่ะ |",
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      "editor_id": 33,
      "message_received": "ให้พี่หล้าด้วยนะคะ",
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      "slices": "สวัสดีพี่ล้ด้วยนะคะ |",
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      "editor_id": 33,
      "message_received": "สวัสดีวันศุกร์ค่ะลูกๆ",
      "slice_count": 1,
      "slices": "สวัสดีวันศุกร์ค่ะ ลูก ๆ |",
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      "editor_id": 33,
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      "slices": "เป็นไงบ้างวันนี้วันศุกร์ |อากาศดีไหมคะ| |",
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      "message_id": 5,
      "editor_id": 33,
      "message_received": "อากาศดีไหมวันนี้",
      "slice_count": 1,
      "slices": "อากาศดีไหมวันนี้|",
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      "editor_id": 33,
      "message_received": "หนาวไหม",
      "slice_count": 2,
      "slices": " | ดี หนาวไหม|",
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      "slice_count": 2,
      "slices": " ไม่หนาวนะ|วันนี้อากาศกำลังดี|",
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      "message_id": 8,
      "editor_id": 33,
      "message_received": "กำลังอาบน้ำสบายๆนะคะตื่นเช้ามาก็สดใสนะอากาศดี",
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      "slices": " |กำลังอาบน้ำสบาย ๆ นะคะ| ตื่นเช้ามาก็สดใสนะ |อากาศดี|",
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      "message_id": 9,
      "editor_id": 33,
      "message_received": "เดี๋ยวเรารอวีดีโอแป๊บนึงนะลูกนะ",
      "slice_count": 3,
      "slices": " |เดี๋ยวเรารอวิดีโอ |แป๊บหนึ่งนะลูกนะ|",
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      "message_id": 10,
      "editor_id": 33,
      "message_received": "วันนี้เรา",
      "slice_count": 2,
      "slices": " |วันนี้เรา|",
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      "edit_duration_all": 8.948,
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      "message_id": 11,
      "editor_id": 33,
      "message_received": "จะมาเรียนรู้หัวข้อใหม่",
      "slice_count": 1,
      "slices": "จะมาเรียนรู้หัวข้อใหม่|",
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      "message_id": 12,
      "editor_id": 33,
      "message_received": "แต่เนื้อหาก็ยังสืบเนื่องจาก",
      "slice_count": 2,
      "slices": " |แต่เนื้อหาก็ยังสืบเนื่องจาก|",
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      "is_forceout": false
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      "message_id": 13,
      "editor_id": 33,
      "message_received": "เรื่องเดิมอยู่",
      "slice_count": 1,
      "slices": "เรื่องเดิมอยู่|",
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      "edit_duration_all": 4.968,
      "is_forceout": false
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      "message_id": 14,
      "editor_id": 33,
      "message_received": "ถ้าใครยังจำ",
      "slice_count": 2,
      "slices": " |ถ้าใครยังจำ|",
      "edit_duration": 1.647,
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      "message_id": 15,
      "editor_id": 33,
      "message_received": "ชั่วโมงที่แล้วที่เราเรียนกันได้นะคะเรื่องอะไรนะ",
      "slice_count": 3,
      "slices": "ชั่วโมงที่แล้ว |ที่เราเรียนกันได้นะคะ| เรื่องอะไรนะ|",
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      "is_forceout": false
    },
    {
      "message_id": 16,
      "editor_id": 33,
      "message_received": "อะไรคะ",
      "slice_count": 1,
      "slices": "อะไรคะ |",
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      "edit_duration_all": 3.298,
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      "message_id": 17,
      "editor_id": 33,
      "message_received": "ลำดับใช่ไหม",
      "slice_count": 1,
      "slices": "ลำดับใช่ไหม|",
      "edit_duration": 5.141,
      "edit_duration_all": 5.141,
      "is_forceout": false
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      "message_id": 18,
      "editor_id": 33,
      "message_received": "ลำดับใช่ไหมลูก",
      "slice_count": 2,
      "slices": " |ใช่ไหม เรื่องลำดับใช่ไหมลูก|",
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      "message_id": 19,
      "editor_id": 33,
      "message_received": "จำกันได้ไหมน้อ",
      "slice_count": 2,
      "slices": " |จำกันได้ไหม น|",
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      "message_id": 20,
      "editor_id": 33,
      "message_received": "ลำดับ",
      "slice_count": 2,
      "slices": "ะ |ลำดับ|",
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      "editor_id": 33,
      "message_received": "ให้เวลานะให้เวลาทบทวนนะคะลืมหมดแล้ว",
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      "slices": " |ให้เวลานะ |ให้เวลาทบทวนนะคะ| ลืมหมดแล้ว|",
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      "is_forceout": false
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      "message_id": 22,
      "editor_id": 33,
      "message_received": "ไม่เป็นไรเดี๋ยววันนี้คุณเจนจะมารบกวนนิดนึง",
      "slice_count": 2,
      "slices": " |ไม่เป็นไรเดี๋ยววันนี้คุณเจนจะมาท|",
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      "message_id": 23,
      "editor_id": 33,
      "message_received": "เพราะหัวข้อที่เราจะเรียนมันซึมเนื่องจากเรื่องของลำดับด้วย",
      "slice_count": 2,
      "slices": "บทวนให้นิดหนึ่ง |เพราะหัวข้อที่เราจะเรียนมันสืบเนื่องจากเรื่องของลำดับด้วย|",
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      "is_forceout": false
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      "message_id": 24,
      "editor_id": 33,
      "message_received": "รอสักพักนึงนะลูกรอแป๊บนึง",
      "slice_count": 3,
      "slices": " |รอสักพักหนึ่งนะลูก |รอแป๊บหนึ่ง|",
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      "is_forceout": false
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      "message_id": 25,
      "editor_id": 33,
      "message_received": "วันนี้นะคะเราจะมาเรียนในเรื่องของอนุกรม",
      "slice_count": 3,
      "slices": " |วันนี้นะคะ| เราจะมาเรียนในเรื่องของอนุกรม|",
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      "is_forceout": false
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      "message_id": 26,
      "editor_id": 33,
      "message_received": "จะได้ยินไหม",
      "slice_count": 2,
      "slices": " |เคยได้ยินไหม|",
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      "is_forceout": false
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      "message_id": 27,
      "editor_id": 33,
      "message_received": "อนุกรม",
      "slice_count": 2,
      "slices": " |อนุกรม|",
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      "is_forceout": false
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      "message_id": 28,
      "editor_id": 33,
      "message_received": "ไม่เคยได้ยินคำนี้ลูก",
      "slice_count": 2,
      "slices": " |ไหนใครเคยได้ยินคำนี้ลูก|",
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      "message_id": 29,
      "editor_id": 33,
      "message_received": "ไม่เคยเนาะ",
      "slice_count": 2,
      "slices": " |ไม่เคยนะ|",
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      "message_id": 30,
      "editor_id": 33,
      "message_received": "แปลกนะลูกวิชาคณิตศาสตร์มันก็จะมีศัพท์เฉพาะของมันเยอะแยะเลย",
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      "slices": " |แปลกนะลูก |วิชาคณิตศาสตร์ |มันก็จะมีศัพท์เฉพาะของมันเยอะแยะเลย|",
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      "message_id": 31,
      "editor_id": 33,
      "message_received": "อนุกรม",
      "slice_count": 2,
      "slices": " |อนุกรม|",
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      "edit_duration_all": 7.756,
      "is_forceout": false
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      "message_id": 32,
      "editor_id": 33,
      "message_received": "วันนี้เราจะมาเรียนรู้ในเรื่องความหมายของอนุกรมกันนะคะ",
      "slice_count": 2,
      "slices": " |วันนี้เราจะมาเรียนรู้ในเรื่องความหมายของอนุกรมกันนะคะ |",
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    {
      "message_id": 33,
      "editor_id": 33,
      "message_received": "โอเคอ่านในเรื่องอนุกรมวันนี้นะคะจุดประสงค์หลักๆที่",
      "slice_count": 3,
      "slices": "โอเค |ในเรื่องอนุกรมวันนี้นะคะ |จุดประสงค์หลัก ๆ ที่|",
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      "is_forceout": false
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    {
      "message_id": 34,
      "editor_id": 33,
      "message_received": "เมื่อเราเรียนจบกับคุณเจนแล้วเนี่ย",
      "slice_count": 1,
      "slices": "เมื่อเราเรียนจบกับคุณเจนแล้วนี่|",
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      "is_forceout": false
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    {
      "message_id": 35,
      "editor_id": 33,
      "message_received": "ลูกๆทุกคนต้องเข้าใจหรือว่าต้องสามารถทำได้นะคะอันแรกเลย",
      "slice_count": 4,
      "slices": " |ลูก ๆ ทุกคนต้องเข้าใจ |หรือว่าต้องสามารถทำได้นะคะ| อันแรกเลย|",
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    {
      "message_id": 36,
      "editor_id": 33,
      "message_received": "ลูกๆนะคะ",
      "slice_count": 1,
      "slices": " ลูก ๆ นะคะ |",
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      "is_forceout": false
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      "message_id": 37,
      "editor_id": 33,
      "message_received": "สามารถอธิบายความหมายของอนุกรมได้",
      "slice_count": 1,
      "slices": "สามารถอธิบายความหมายของอนุกรมได้|",
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      "is_forceout": false
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      "message_id": 38,
      "editor_id": 33,
      "message_received": "อนุกรมมันคืออะไร",
      "slice_count": 2,
      "slices": " |ว่าอนุกรมมันคืออะไร |",
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      "is_forceout": false
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      "message_id": 39,
      "editor_id": 33,
      "message_received": "เรียนจบแล้วนี่ต้องเข้าใจตรงนี้เลยนะ",
      "slice_count": 2,
      "slices": "เรียนจบแล้ว |นี่ต้องเข้าใจตรงนี้เลยนะ|",
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      "message_id": 40,
      "editor_id": 33,
      "message_received": "ข้อ 2 นะคะลูกๆสามารถเข้าใจความหมายของผลบวก",
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      "slices": " |ข้อ 2 นะคะ |ลูก ๆ สามารถเข้าใจความหมายของผลบวก|",
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      "message_id": 41,
      "editor_id": 33,
      "message_received": "มด",
      "slice_count": 2,
      "slices": " ||",
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      "is_forceout": false
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      "message_id": 42,
      "editor_id": 33,
      "message_received": "n พจน์แรกของอนุกรมได้",
      "slice_count": 2,
      "slices": "n พจน์ |n พจน์แรกของอนุกรมได้|",
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    {
      "message_id": 43,
      "editor_id": 33,
      "message_received": "พจน์แรกของอนุกรมนะ",
      "slice_count": 2,
      "slices": " |พจน์แรกของอนุกรมนะ|",
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      "edit_duration_all": 11.534,
      "is_forceout": false
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    {
      "message_id": 44,
      "editor_id": 33,
      "message_received": "ข้อสุดท้ายนะคะ",
      "slice_count": 2,
      "slices": " |ข้อสุดท้ายนะคะ |",
      "edit_duration": 9.364,
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      "is_forceout": false
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    {
      "message_id": 45,
      "editor_id": 33,
      "message_received": "นักเรียนสามารถหรือว่าลูกๆเนี่ยสามารถหาผลบวกของ N พจน์แรกของอนุกรม",
      "slice_count": 2,
      "slices": "นักเรียนสามารถหรือว่าลูก ๆ นี่ |สามารถหาผลบวกของ n พจน์แรกของอนุกรม|",
      "edit_duration": 7.955,
      "edit_duration_all": 13.623,
      "is_forceout": false
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    {
      "message_id": 46,
      "editor_id": 33,
      "message_received": "ผมได้",
      "slice_count": 1,
      "slices": "ได้|",
      "edit_duration": 13.042,
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      "is_forceout": false
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    {
      "message_id": 47,
      "editor_id": 33,
      "message_received": "คือหาผลบวกของ N พจน์แรกได้",
      "slice_count": 2,
      "slices": " |คือหาผลบวกของ n พจน์แรกได้|",
      "edit_duration": 10.669,
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      "is_forceout": false
    },
    {
      "message_id": 48,
      "editor_id": 33,
      "message_received": "ขึ้นกระดานใช่ไหมคะเนี่ย",
      "slice_count": 3,
      "slices": " |ขึ้นกระดานใช่ไหมคะ| นี่ |",
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      "is_forceout": false
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    {
      "message_id": 49,
      "editor_id": 13,
      "message_received": "โอเคขึ้นกระดานก็ได้สรุป",
      "slice_count": 1,
      "slices": "โอเคขึ้นกระดานก็ได้|",
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      "is_forceout": false
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    {
      "message_id": 50,
      "editor_id": 13,
      "message_received": "มาดูความหมายของอนุกรมก่อนนะคะ",
      "slice_count": 2,
      "slices": "ค่ะลูก |มาดูความหมายของอนุกรมก่อนนะคะ |",
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      "is_forceout": false
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    {
      "message_id": 51,
      "editor_id": 13,
      "message_received": "อนุกรมอนุกรมคืออะไร",
      "slice_count": 2,
      "slices": "อนุกรม |อนุกรมคืออะไร |",
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      "is_forceout": false
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    {
      "message_id": 52,
      "editor_id": 13,
      "message_received": "อนุกรมนะคะคือผลบวกของลำดับ",
      "slice_count": 3,
      "slices": "อนุกรมนะคะ |คือ |ผลบวกของลำดับ|",
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      "is_forceout": false
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    {
      "message_id": 53,
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      "editor_id": 33,
      "message_received": "FM นะคะลูก",
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      "slices": "sn นะคะลูก|",
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      "editor_id": 33,
      "message_received": "sn",
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      "slices": " sn |",
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      "message_id": 120,
      "editor_id": 13,
      "message_received": "มีตัวแปรใหม่มาให้เราเห็นอีกละ",
      "slice_count": 1,
      "slices": "มีตัวแปรใหม่มาให้เราเห็นอีก|",
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      "editor_id": 13,
      "message_received": "sn นะคะแทนผลบวก",
      "slice_count": 3,
      "slices": "แล้ว |sn นะคะ |แทนผลบวก|",
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      "message_id": 122,
      "editor_id": 13,
      "message_received": "Tan ผลบวก",
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      "slices": " |แทนผลบวก|",
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      "editor_id": 13,
      "message_received": "นะคะ",
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      "slices": "นะคะ |",
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      "message_id": 124,
      "editor_id": 13,
      "message_received": "n พจน์แรกของลำดับ",
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      "slices": "n พจน์แรกของลำดับ |",
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      "is_forceout": false
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      "message_id": 125,
      "editor_id": 13,
      "message_received": "หรือพูดง่ายๆว่า sn ในรูปแทนอนุกรม",
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      "slices": "หรือพูดง่าย ๆ |ว่า |sn ตัวนี้ลูก |แทนอนุกรม|",
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      "is_forceout": false
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      "message_id": 126,
      "editor_id": 13,
      "message_received": "เขียนแทนอนุกรม",
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      "slices": " |เขียนแทนอนุกรม|",
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      "message_id": 127,
      "editor_id": 13,
      "message_received": "ได้เลยนะคะ",
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      "slices": "ได้เลยนะคะ |",
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      "message_id": 128,
      "editor_id": 13,
      "message_received": "งั้นถ้าเราเขียนตัวนี้ใช่ไหมคะเราจะได้ว่า sn",
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      "slices": "เพราะฉะนั้น |ถ้าเราเขียนตัวนี้ใช่ไหมคะ| เราจะได้ว่า sn |",
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      "message_id": 129,
      "editor_id": 33,
      "message_received": "เท่ากับ",
      "slice_count": 1,
      "slices": "เท่ากับ|",
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      "is_forceout": true
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      "message_id": 130,
      "editor_id": 33,
      "message_received": "บทที่ 1 ใช่ไหม",
      "slice_count": 1,
      "slices": "พจน์ที่ 1 ใช่ไหม|",
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      "editor_id": 33,
      "message_received": "ที่ 1 + พจน์ที่ 2",
      "slice_count": 2,
      "slices": " |พจน์ที่ 1 + พจน์ที่ 2|",
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      "message_id": 132,
      "editor_id": 33,
      "message_received": "+",
      "slice_count": 1,
      "slices": "|",
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      "edit_duration_all": 16.009,
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      "message_id": 133,
      "editor_id": 33,
      "message_received": "บทที่ 3",
      "slice_count": 1,
      "slices": " บวกพจนที่ 3|",
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      "edit_duration_all": 16.014,
      "is_forceout": true
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      "message_id": 134,
      "editor_id": 33,
      "message_received": "บวกไปเรื่อยๆ",
      "slice_count": 2,
      "slices": "บวกไปเรื่อย ๆ| |",
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      "is_forceout": true
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      "message_id": 135,
      "editor_id": 33,
      "message_received": "ถึงอะไรคะ",
      "slice_count": 1,
      "slices": "ถึงอะไรคะ |",
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      "message_id": 136,
      "editor_id": 33,
      "message_received": "พจน์ที่ n",
      "slice_count": 1,
      "slices": "พจน์ที่ n|",
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      "edit_duration_all": 13.72,
      "is_forceout": false
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    {
      "message_id": 137,
      "editor_id": 33,
      "message_received": "ในตัวอย่างนี้ก็คือ 1 บวกอะไรคะ",
      "slice_count": 2,
      "slices": " |ในตัวอย่างนี้ก็คือ 1 บวกอะไรคะ |",
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      "is_forceout": false
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      "message_id": 138,
      "editor_id": 33,
      "message_received": "3",
      "slice_count": 1,
      "slices": "3|",
      "edit_duration": 10.247,
      "edit_duration_all": 10.247,
      "is_forceout": false
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      "message_id": 139,
      "editor_id": 33,
      "message_received": "+ 5",
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      "slices": " + |5|",
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      "edit_duration_all": 15.539,
      "is_forceout": false
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      "message_id": 140,
      "editor_id": 33,
      "message_received": "+7",
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      "slices": " + 7|",
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      "edit_duration_all": 14.864,
      "is_forceout": false
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      "message_id": 141,
      "editor_id": 33,
      "message_received": "+ ป้าง",
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      "slices": " + |",
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      "message_id": 142,
      "editor_id": 33,
      "message_received": "มาแล้วค่ะได้เท่าไหร่คะ",
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      "slices": "9 |หามาแล้วค่ะ ได้เท่าไรคะ|",
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      "message_id": 143,
      "editor_id": 33,
      "message_received": "25 ใช่ไหม",
      "slice_count": 2,
      "slices": " |25 ใช่ไหม|",
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      "message_id": 144,
      "editor_id": 33,
      "message_received": "วันนี้เราจะเห็นนะคะจำไว้เลยนะต่อไปนี้เราจะ",
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      "slices": " |อันนี้เราจะเห็นนะคะ| จำไว้เลยนะ |ต่อไปนี้เราจะ|",
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      "message_id": 145,
      "editor_id": 13,
      "message_received": "คุ้นเคยกับ",
      "slice_count": 1,
      "slices": "คุ้นเคยกับ|",
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      "is_forceout": false
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      "message_id": 146,
      "editor_id": 13,
      "message_received": "sn",
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      "slices": " |sn|",
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      "edit_duration_all": 3.42,
      "is_forceout": false
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    {
      "message_id": 147,
      "editor_id": 13,
      "message_received": "เท่ากับ",
      "slice_count": 3,
      "slices": " |= ||",
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      "is_forceout": false
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      "message_id": 148,
      "editor_id": 13,
      "message_received": "A1 + A2 + A3 + ไปเรื่อยๆจนถึง",
      "slice_count": 1,
      "slices": "A1 + A2 + A3 + ไปเรื่อย ๆ จนถึง + An นะคะ |",
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      "is_forceout": false
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    {
      "message_id": 149,
      "editor_id": 13,
      "message_received": "ที่นี้นะคะว่าถึงตรงนี้",
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      "slices": "ทีนี้นะคะ |พอถึงตรงนี้|",
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      "is_forceout": false
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      "message_id": 150,
      "editor_id": 13,
      "message_received": "ฉันก็จะยอมเป็นเรื่องของลำดับ",
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      "slices": " |ครูเจนก็จะย้อนไป|ถึงเรื่องของลำดับ|",
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      "message_id": 151,
      "editor_id": 13,
      "message_received": "จำได้ไหมว่าลำดับมีกี่",
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      "slices": " จำได้ไหมว่าลำดับ |มีกี่|",
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      "message_id": 152,
      "editor_id": 13,
      "message_received": "กี่ประเภทคะ",
      "slice_count": 1,
      "slices": "กี่ประเภทคะ|",
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      "is_forceout": false
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      "message_id": 153,
      "editor_id": 13,
      "message_received": "ลำดับจำได้ไหม",
      "slice_count": 2,
      "slices": " |ลำดับจำได้ไหม |",
      "edit_duration": 10.745,
      "edit_duration_all": 11.305,
      "is_forceout": false
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    {
      "message_id": 154,
      "editor_id": 13,
      "message_received": "น้ำหนักมีอยู่ 2",
      "slice_count": 1,
      "slices": "ลำดับมีอยู่ 2 |",
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      "is_forceout": false
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      "message_id": 155,
      "editor_id": 33,
      "message_received": "ประเภท",
      "slice_count": 1,
      "slices": "ประเภท|",
      "edit_duration": 5.535,
      "edit_duration_all": 5.535,
      "is_forceout": false
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    {
      "message_id": 156,
      "editor_id": 33,
      "message_received": "นึกออกไหมคะ",
      "slice_count": 2,
      "slices": " |นึกออกไหมคะ |",
      "edit_duration": 3.498,
      "edit_duration_all": 4.43,
      "is_forceout": false
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    {
      "message_id": 157,
      "editor_id": 33,
      "message_received": "อันแรกคือลำดับจำกัด",
      "slice_count": 1,
      "slices": " อันแรก คือ ลำดับจำกัด|",
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      "is_forceout": false
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    {
      "message_id": 158,
      "editor_id": 33,
      "message_received": "ใช่ไหม",
      "slice_count": 2,
      "slices": " |ใช่ไหม|",
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      "edit_duration_all": 7.62,
      "is_forceout": false
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    {
      "message_id": 159,
      "editor_id": 33,
      "message_received": "ลำดับจำกัดก็คือลำดับที่เรารู้ว่ามันมีกี่คน",
      "slice_count": 3,
      "slices": " |ลำดับจำกัด |ก็คือลำดับที่เรารู้ว่ามันมีกี่พ|",
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      "edit_duration_all": 8.142,
      "is_forceout": false
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    {
      "message_id": 160,
      "editor_id": 33,
      "message_received": "ใช่ไหมคะ",
      "slice_count": 3,
      "slices": "จน์ |ใช่ไหมคะ| อย่างเช่น |",
      "edit_duration": 3.91,
      "edit_duration_all": 16.013,
      "is_forceout": true
    },
    {
      "message_id": 161,
      "editor_id": 33,
      "message_received": "ลำดับที่มี A1",
      "slice_count": 1,
      "slices": "ลำดับที่มี a1|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
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      "message_id": 162,
      "editor_id": 33,
      "message_received": "A2",
      "slice_count": 1,
      "slices": " a2|",
      "edit_duration": 16.014,
      "edit_duration_all": 16.014,
      "is_forceout": true
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      "message_id": 163,
      "editor_id": 33,
      "message_received": "A3 ไปเรื่อยๆ",
      "slice_count": 1,
      "slices": " a3 ไปเรื่อย ๆ |",
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      "is_forceout": false
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    {
      "message_id": 164,
      "editor_id": 33,
      "message_received": "เอเลน",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 16.016,
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      "is_forceout": true
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    {
      "message_id": 165,
      "editor_id": 33,
      "message_received": "จบที่เอน",
      "slice_count": 1,
      "slices": " an จบที่|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
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    {
      "message_id": 166,
      "editor_id": 33,
      "message_received": "นั่นหมายถึงว่าลำดับนี้มี",
      "slice_count": 1,
      "slices": " นั่นหมายถึงว่าลำดับนี้มี|",
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      "is_forceout": true
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    {
      "message_id": 167,
      "editor_id": 13,
      "message_received": "ยูเวนตุส",
      "slice_count": 1,
      "slices": " |",
      "edit_duration": 8.749,
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      "is_forceout": false
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    {
      "message_id": 168,
      "editor_id": 13,
      "message_received": "ใช่ไหมคะอันนี้เขาเรียกว่าลำดับ",
      "slice_count": 2,
      "slices": "AN |ใช่ไหมคะ อันนี้เขาเรียกว่าลำดับ|",
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      "edit_duration_all": 7.885,
      "is_forceout": false
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    {
      "message_id": 169,
      "editor_id": 13,
      "message_received": "จำกัด",
      "slice_count": 1,
      "slices": "จำกัด|",
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      "edit_duration_all": 6.912,
      "is_forceout": false
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      "message_id": 170,
      "editor_id": 13,
      "message_received": "ถ้าเรานำลำดับจำกัดนี้มาเขียน",
      "slice_count": 2,
      "slices": " |ถ้าเรานำลำดับจำกัดนี้มาเขียน|",
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      "is_forceout": false
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    {
      "message_id": 171,
      "editor_id": 13,
      "message_received": "อนุกรม",
      "slice_count": 2,
      "slices": " |เป็นอนุกรม|",
      "edit_duration": 2.939,
      "edit_duration_all": 6.966,
      "is_forceout": false
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    {
      "message_id": 172,
      "editor_id": 13,
      "message_received": "เราก็จะได้ว่า",
      "slice_count": 2,
      "slices": " |เราก็จะได้ว่า |",
      "edit_duration": 4.346,
      "edit_duration_all": 5.175,
      "is_forceout": false
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    {
      "message_id": 173,
      "editor_id": 13,
      "message_received": "A1 + A2 + A3 และบวกไปเรื่อยๆถึง",
      "slice_count": 3,
      "slices": "A1 + A2 + A3 |และบวกไปเรื่อย ๆ |จนถึง|",
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      "is_forceout": false
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    {
      "message_id": 174,
      "editor_id": 13,
      "message_received": "เราจะเรียกว่าอนุกรมจำกัด",
      "slice_count": 2,
      "slices": " An |เราจะเรียกว่าอนุกรมจำกัด|",
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      "is_forceout": false
    },
    {
      "message_id": 175,
      "editor_id": 13,
      "message_received": "ที่ร้านนะคะ",
      "slice_count": 2,
      "slices": " |ดูพี่ล่ามนะคะ  |",
      "edit_duration": 2.472,
      "edit_duration_all": 8.649,
      "is_forceout": false
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    {
      "message_id": 176,
      "editor_id": 33,
      "message_received": "มีร้านนะตรงนี้ต้องเข้าใจแล้วต้องจำด้วย",
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      "slices": "มีนะ |ตรงนี้ต้องเข้าใจแล้วต้องจำด้วย|",
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      "is_forceout": false
    },
    {
      "message_id": 177,
      "editor_id": 33,
      "message_received": "ที่นี้เหมือนกันค่ะ",
      "slice_count": 2,
      "slices": " |ทีนี้เหมือนกันค่ะ |",
      "edit_duration": 4.754,
      "edit_duration_all": 6.138,
      "is_forceout": false
    },
    {
      "message_id": 178,
      "editor_id": 33,
      "message_received": "ลำดับ 1 ลำดับที่ 2 คือลำดับอนันต์",
      "slice_count": 2,
      "slices": "อีกลำดับ 1 |ลำดับที่ 2 คือลำดับอนันต์|",
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      "edit_duration_all": 8.893,
      "is_forceout": false
    },
    {
      "message_id": 179,
      "editor_id": 33,
      "message_received": "ลำดับอนันต์ก็คือลำดับที่เราไม่รู้เลยว่าโพสต์นั้นมีกี่",
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      "slices": " |ลำดับอนันต์ |ก็คือลำดับที่เราไม่รู้เลยว่าพจน์นั้นมีกี่|",
      "edit_duration": 2.669,
      "edit_duration_all": 12.305,
      "is_forceout": false
    },
    {
      "message_id": 180,
      "editor_id": 33,
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      "message_received": "เทพสุดท้าย FC คือ",
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      "editor_id": 13,
      "message_received": "อนุกรมนี้มีทั้งหมด 5 โพสต์ถูกไหมคะ",
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      "editor_id": 13,
      "message_received": "งั้นถ้าเราจะหาอนุกรมมีค่าเท่าใด",
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      "message_id": 305,
      "editor_id": 13,
      "message_received": "เราก็แทน",
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      "slices": "เราก็แทน|",
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      "message_id": 306,
      "editor_id": 13,
      "message_received": "sn",
      "slice_count": 1,
      "slices": " sn|",
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      "message_id": 307,
      "editor_id": 13,
      "message_received": "เท่ากับ A1",
      "slice_count": 2,
      "slices": " = | A1|",
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      "message_id": 308,
      "editor_id": 13,
      "message_received": "1 + 12 + 13 + 14 + 15",
      "slice_count": 2,
      "slices": " |1 + 2 + 3 + 4 + 5 |",
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      "message_id": 309,
      "editor_id": 33,
      "message_received": "ไม่รู้",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 9.829,
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      "message_id": 310,
      "editor_id": 33,
      "message_received": "มาแทนค่าเลยไปขึ้น 1 + 3 + 5 +",
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      "slices": "ถูกไหมลูก |มาแทนค่าเลย |ขึ้น 1 + 3 + 5 +|",
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      "message_id": 311,
      "editor_id": 33,
      "message_received": "หมวกลาว",
      "slice_count": 1,
      "slices": "|",
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      "is_forceout": false
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      "message_id": 312,
      "editor_id": 33,
      "message_received": "เท่าไหร่คะเนี่ยเพื่อนหาได้ 25 ตรงไหม",
      "slice_count": 3,
      "slices": " 9 |เท่าไรคะนี่ |เพื่อนหาได้ 25 ตรงไหม|",
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      "message_id": 313,
      "editor_id": 33,
      "message_received": "ส่งเราไหมคะ",
      "slice_count": 2,
      "slices": " |ตรงเราไหมคะ |",
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      "message_id": 314,
      "editor_id": 33,
      "message_received": "บวกแล้วได้ 25 ไหมลูก",
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      "slices": "บวกแล้วได้ 25 ไหมลูก|",
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      "message_id": 315,
      "editor_id": 33,
      "message_received": "15 ไหม",
      "slice_count": 1,
      "slices": " 25 ไหม|",
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      "message_id": 316,
      "editor_id": 33,
      "message_received": "25 ถูกต้องนะคะ 1 + 3 เป็น 4 4 + 5 เป็น",
      "slice_count": 4,
      "slices": " |25 ถูกต้องนะคะ| 1 + 3 เป็น 4 | 4 + 5 เป็น |",
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      "message_id": 317,
      "editor_id": 13,
      "message_received": "99 + 7%",
      "slice_count": 1,
      "slices": "9 9 + 7 |",
      "edit_duration": 7.144,
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      "is_forceout": false
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      "message_id": 318,
      "editor_id": 13,
      "message_received": "16",
      "slice_count": 1,
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      "edit_duration": 5.933,
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      "message_id": 319,
      "editor_id": 13,
      "message_received": "และ 16 + 9",
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      "message_id": 320,
      "editor_id": 13,
      "message_received": "อากาศ",
      "slice_count": 1,
      "slices": " |",
      "edit_duration": 6.66,
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      "is_forceout": false
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      "message_id": 321,
      "editor_id": 13,
      "message_received": "25 ข้อนี้นะคะอนุกรมมีค่า",
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      "slices": "= |25 |เพราะฉะนั้น |ข้อนี้นะคะ อนุกรมมีค่า|",
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      "message_id": 322,
      "editor_id": 13,
      "message_received": "25 นั้น AR เก่งมากเลยเพื่อนหน่อย",
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      "is_forceout": true
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      "message_id": 323,
      "editor_id": 13,
      "message_received": "ราคาเข่งมากับรถ",
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      "slices": "นะคะ |เก่งมากกับรถ|",
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      "message_id": 324,
      "editor_id": 13,
      "message_received": "โอเคมาดูข้อต่อไปนะคะ",
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      "slices": "โอเคมาดูข้อต่อไปนะคะ  |",
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      "message_id": 325,
      "editor_id": 13,
      "message_received": "มาดูตัวอย่างต่อไป",
      "slice_count": 1,
      "slices": "มาดูตัวอย่างต่อไป|",
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      "message_id": 326,
      "editor_id": 13,
      "message_received": "มาดูว่าใครจะออกมาหาคำตอบไม่ได้บ้างนะคะ",
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      "slices": " |มาดูว่าใครจะออกมาหาคำตอบให้ได้บ้างนะคะ |",
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      "message_id": 327,
      "editor_id": 33,
      "message_received": "คิดนะคิดตามนะ",
      "slice_count": 1,
      "slices": "คิดนะ คิดตามนะ |",
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      "message_id": 328,
      "editor_id": 33,
      "message_received": "อาทิตย์นี้มาดูตัวอย่างต่อไปนะคะ",
      "slice_count": 1,
      "slices": "ทีนี้มาดูตัวอย่างต่อไปนะคะ |",
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      "message_id": 329,
      "editor_id": 33,
      "message_received": "วันนี้จะมีความซับซ้อนขึ้นมานิดนึง",
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      "slices": "อันนี้จะมีความซับซ้อนขึ้นมานิดห|",
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      "message_id": 330,
      "editor_id": 33,
      "message_received": "นิดนึงเนาะ",
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      "slices": "นึ่ง |นิดหนึ่งนะ|",
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      "message_id": 331,
      "editor_id": 33,
      "message_received": "โจทย์บอกว่าจงหาผลบวกของ 5 พจน์แรกของลำดับ",
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      "message_id": 332,
      "editor_id": 33,
      "message_received": "135",
      "slice_count": 1,
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      "edit_duration": 12.403,
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      "is_forceout": false
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      "message_id": 333,
      "editor_id": 33,
      "message_received": "เรารู้แล้วว่าอนุกรมก็คือผลบวกของลำดับถูกไหมคะ",
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      "is_forceout": false
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      "message_id": 334,
      "editor_id": 13,
      "message_received": "ใช่ไหม",
      "slice_count": 1,
      "slices": "ใช่ไหม|",
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      "is_forceout": false
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      "message_id": 335,
      "editor_id": 13,
      "message_received": "อนุกรมคือผลบวกของลำดับ",
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      "message_id": 336,
      "editor_id": 13,
      "message_received": "แต่โจทย์ข้อนี้เขาบอกลำดับมาแค่",
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      "message_id": 337,
      "editor_id": 13,
      "message_received": "135",
      "slice_count": 1,
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      "message_id": 338,
      "editor_id": 13,
      "message_received": "แค่กี่",
      "slice_count": 2,
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      "message_id": 339,
      "editor_id": 13,
      "message_received": "ตัวคะ",
      "slice_count": 1,
      "slices": "ตัวคะ |",
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      "message_id": 340,
      "editor_id": 13,
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      "slice_count": 2,
      "slices": "มีแค่ 3 ตัว |แต่โจทย์เขาให้เราหา 5 พจน์แรก|",
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      "message_id": 341,
      "editor_id": 13,
      "message_received": "อยากไปไหมนี่ฮ่าๆๆแสดงว่าโจทก์ยังไม่ครบถูกไหมคะลูก",
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      "message_id": 342,
      "editor_id": 33,
      "message_received": "เขาให้หาห้าพจน์แรก",
      "slice_count": 1,
      "slices": "เขาให้หา 5 พจน์แรก|",
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      "is_forceout": false
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      "message_id": 343,
      "editor_id": 33,
      "message_received": "โจทย์ให้มาแค่ 3 หัว",
      "slice_count": 2,
      "slices": " |แต่โจทย์ให้มาแค่ 3 พ|",
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    {
      "message_id": 344,
      "editor_id": 33,
      "message_received": "ชายแดนข้อนี้เราจะต้องเป็นไงคะหา",
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      "slices": "จน์ |ชายแดน| ข้อนี้เราจะต้องเป็นอย่างไรคะ หา|",
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      "is_forceout": true
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      "message_id": 345,
      "editor_id": 33,
      "message_received": "เพิ่มอีก 2 คนถูกไหมคะ",
      "slice_count": 1,
      "slices": "เพิ่มอีก 2 ถูกไหมคะ |",
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      "is_forceout": true
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      "message_id": 346,
      "editor_id": 33,
      "message_received": "งั้นเราก็จะได้ย้อนกลับไปความรู้เดิมที่เราเรียนผ่านมาแล้ว",
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      "message_id": 347,
      "editor_id": 33,
      "message_received": "คือเรื่องของลำดับ",
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      "slices": " คือเรื่องของลำดับ|",
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      "message_id": 348,
      "editor_id": 13,
      "message_received": "เรื่องของการหาพท",
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      "is_forceout": false
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      "message_id": 349,
      "editor_id": 13,
      "message_received": "การหาพจน์แรกสามพจน์แรก 4/1 พจน์ที่ N ของลำดับจำได้ไหมมันจะมีสูตรในการหา",
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      "message_id": 350,
      "editor_id": 13,
      "message_received": "โดยใช้สูตร",
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      "slices": "โดยใช้สูตร|",
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      "message_id": 351,
      "editor_id": 13,
      "message_received": "เท่ากับ A1",
      "slice_count": 1,
      "slices": "เท่ากับ A1|",
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      "message_id": 352,
      "editor_id": 13,
      "message_received": "บวกในวงเล็บ n - 1",
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      "slices": "บวกในวงเล็บ n - 1|",
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      "message_id": 353,
      "editor_id": 13,
      "message_received": "วงเล็บคุณได้ดี",
      "slice_count": 1,
      "slices": "วงเล็บคุณได้ดี|",
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      "message_id": 354,
      "editor_id": 13,
      "message_received": "อันนี้คือสูตรการหาอะไรคะ",
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      "slices": "อันนี้คือสูตรการหาอะไรคะ |",
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      "message_id": 355,
      "editor_id": 33,
      "message_received": "หาพจน์ที่ n ถูกไหมคะ",
      "slice_count": 1,
      "slices": "หาพจน์ที่ n ถูกไหมคะ  |",
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      "is_forceout": false
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      "message_id": 356,
      "editor_id": 33,
      "message_received": "ย้อนความรู้นิดนึงถือว่าเป็นการทบทวนเนาะ",
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      "slices": "ย้อนนะ |ย้อนความรู้นิดหนึ่ง |ถือว่าเป็นการทบทวนนะ|",
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      "is_forceout": false
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    {
      "message_id": 357,
      "editor_id": 33,
      "message_received": "งั้นแค่นี้นะคะ",
      "slice_count": 3,
      "slices": " |เพราะฉะนั้นนะคะ| |",
      "edit_duration": 7.308,
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      "is_forceout": true
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    {
      "message_id": 358,
      "editor_id": 33,
      "message_received": "เราจะต้องรู้ว่า A 1 คืออะไร",
      "slice_count": 1,
      "slices": "เราจะต้องรู้ว่า a 1 คืออะไร |",
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      "is_forceout": false
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    {
      "message_id": 359,
      "editor_id": 33,
      "message_received": "ใครทราบ a10 เลขอะไรคะ",
      "slice_count": 1,
      "slices": "ใครทราบ a  เลขอะไรคะ |",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 360,
      "editor_id": 33,
      "message_received": "ไม่ตอบเลยค่ะ",
      "slice_count": 1,
      "slices": "ไม่ตอบเลยค่ะ |",
      "edit_duration": 16.014,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 361,
      "editor_id": 33,
      "message_received": "A1 คือ",
      "slice_count": 1,
      "slices": "A1 คือ|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 362,
      "editor_id": 33,
      "message_received": "ซื้อเลขอะไรคะ",
      "slice_count": 1,
      "slices": "เลขอะไรคะ  |",
      "edit_duration": 15.241,
      "edit_duration_all": 15.241,
      "is_forceout": false
    },
    {
      "message_id": 363,
      "editor_id": 13,
      "message_received": "คนนี้ยกมือคนนี้ตอบอย่างมากคือ 1 นะคะถูกต้องค่ะยำมา",
      "slice_count": 5,
      "slices": "คนนี้ยกมือ |คนนี้ตอบอย่างมาก |คือ 1 นะคะ |ถูกต้องค่ะ ||",
      "edit_duration": 2.3,
      "edit_duration_all": 11.395,
      "is_forceout": false
    },
    {
      "message_id": 364,
      "editor_id": 13,
      "message_received": "a101 นะคะ",
      "slice_count": 2,
      "slices": "เก่งมาก a1 คือ |1 นะคะ |",
      "edit_duration": 9.101,
      "edit_duration_all": 9.781,
      "is_forceout": false
    },
    {
      "message_id": 365,
      "editor_id": 13,
      "message_received": "สูตรมันต้องหาค่าดีด้วย",
      "slice_count": 2,
      "slices": "สูตรมันต้องหาค่า d |ด้วย|",
      "edit_duration": 9.34,
      "edit_duration_all": 9.788,
      "is_forceout": false
    },
    {
      "message_id": 366,
      "editor_id": 13,
      "message_received": "ไม่มีคดีคืออะไร",
      "slice_count": 3,
      "slices": " |ค่า d |คืออะไร |",
      "edit_duration": 7.447,
      "edit_duration_all": 12.909,
      "is_forceout": false
    },
    {
      "message_id": 367,
      "editor_id": 13,
      "message_received": "มันมีเฉลยแล้วอ่ะอย่าเพิ่งดูสิ",
      "slice_count": 2,
      "slices": "มันมีเฉลยแล้วน่ะ |อย่าเพิ่งดูสิ|",
      "edit_duration": 13.533,
      "edit_duration_all": 14.09,
      "is_forceout": false
    },
    {
      "message_id": 368,
      "editor_id": 13,
      "message_received": "ข้อดีคืออะไรคะผลต่างร่วมใช่ไหม",
      "slice_count": 1,
      "slices": "ข้อดีคืออะไร คะผลต่างร่วมใช่ไหม |",
      "edit_duration": 8.56,
      "edit_duration_all": 8.56,
      "is_forceout": false
    },
    {
      "message_id": 369,
      "editor_id": 33,
      "message_received": "ค่า D คือผลต่างร่วม",
      "slice_count": 1,
      "slices": "ค่า d คือผลต่างร่วม |",
      "edit_duration": 5.193,
      "edit_duration_all": 5.193,
      "is_forceout": false
    },
    {
      "message_id": 370,
      "editor_id": 33,
      "message_received": "ทางคุณเจนก่อนผู้เรียนถามว่าค่า D คือผลต่างร่วมใช่ไหม",
      "slice_count": 2,
      "slices": "เดี๋ยวฟังครูเจนก่อน |ครูเถามว่าค่า D คือผลต่างร่วมใช่ไหม|",
      "edit_duration": 10.435,
      "edit_duration_all": 16.016,
      "is_forceout": true
    },
    {
      "message_id": 371,
      "editor_id": 33,
      "message_received": "ซึ่งเราสามารถหาคดีได้",
      "slice_count": 2,
      "slices": " |ซึ่งเราสามารถหาคดีได้|",
      "edit_duration": 15.878,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 372,
      "editor_id": 33,
      "message_received": "ว่ายังไงคะ",
      "slice_count": 1,
      "slices": "ว่าอย่างไรคะ|",
      "edit_duration": 16.014,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 373,
      "editor_id": 33,
      "message_received": "การนำ",
      "slice_count": 2,
      "slices": " |การนำ|",
      "edit_duration": 13.798,
      "edit_duration_all": 15.382,
      "is_forceout": false
    },
    {
      "message_id": 374,
      "editor_id": 33,
      "message_received": "พจน์ที่อยู่ใกล้ๆกันมา 1 คู่ใช่ไหมแล้วนำพจน์ข้างหลัง - พุธข้างหน้าใช่ไหมคะ",
      "slice_count": 3,
      "slices": "พจน์ที่อยู่ใกล้ ๆ |กันมา 1 คู่ใช่ไหม |แล้วนำพจน์ข้างหลังลบข้างหน้าใช่ไหมคะ |",
      "edit_duration": 8.485,
      "edit_duration_all": 14.511,
      "is_forceout": false
    },
    {
      "message_id": 375,
      "editor_id": 13,
      "message_received": "ยังข้อนี้เราอาจจะเอาคู่ 1 และ 3 มา",
      "slice_count": 1,
      "slices": "อย่างข้อนี้เราอาจจะเอาคู่ 1 และ 3 มา|",
      "edit_duration": 6.877,
      "edit_duration_all": 6.877,
      "is_forceout": false
    },
    {
      "message_id": 376,
      "editor_id": 13,
      "message_received": "แล้วก็เอา 3 - ออก 1",
      "slice_count": 3,
      "slices": " |ใช่ไหมคะ |แล้วก็เอา 3 ลบออก 1|",
      "edit_duration": 3.896,
      "edit_duration_all": 9.331,
      "is_forceout": false
    },
    {
      "message_id": 377,
      "editor_id": 13,
      "message_received": "จะได้ 2",
      "slice_count": 2,
      "slices": " |จะได้ 2|",
      "edit_duration": 6.867,
      "edit_duration_all": 7.53,
      "is_forceout": false
    },
    {
      "message_id": 378,
      "editor_id": 13,
      "message_received": "งั้นแค่นี้เราก็สรุปได้ว่าตีของอนุกรมนี้คือใช่",
      "slice_count": 4,
      "slices": " |เพราะฉะนั้น ข้อนี้เราก็สรุปได้ว่า d|ของอนุกรมนี้ |คือ ใช่|",
      "edit_duration": 1.934,
      "edit_duration_all": 13.231,
      "is_forceout": false
    },
    {
      "message_id": 379,
      "editor_id": 13,
      "message_received": "ต้องเข้าใจด้วยนะว่า 2 มาจากเอาอะไรคะ",
      "slice_count": 2,
      "slices": " |ต้องเข้าใจด้วยนะว่า 2 มาจากเอาอะไรคะ |",
      "edit_duration": 9.707,
      "edit_duration_all": 11.281,
      "is_forceout": false
    },
    {
      "message_id": 380,
      "editor_id": 13,
      "message_received": "ครุฑหลัง - หน้าคือเอา 3 - 1 ได้",
      "slice_count": 5,
      "slices": "ค|พจน์หลัง ลบหน้า |คือ |เอา 3 - 1 |ได้ |",
      "edit_duration": 8.119,
      "edit_duration_all": 15.639,
      "is_forceout": false
    },
    {
      "message_id": 381,
      "editor_id": 33,
      "message_received": "2",
      "slice_count": 1,
      "slices": "2|",
      "edit_duration": 6.003,
      "edit_duration_all": 6.003,
      "is_forceout": false
    },
    {
      "message_id": 382,
      "editor_id": 33,
      "message_received": "แล้วถ้าเอา 5 - 3 ก็ได้",
      "slice_count": 2,
      "slices": " |แล้วถ้าเอา 5 - 3 ก็ได้|",
      "edit_duration": 3.74,
      "edit_duration_all": 8.789,
      "is_forceout": false
    },
    {
      "message_id": 383,
      "editor_id": 33,
      "message_received": "2 เหมือนกัน",
      "slice_count": 1,
      "slices": " 2 เหมือนกัน|",
      "edit_duration": 6.507,
      "edit_duration_all": 6.507,
      "is_forceout": false
    },
    {
      "message_id": 384,
      "editor_id": 33,
      "message_received": "มันเอาศพในบ้านดีของข้อนี้มีค่าเท่ากับ",
      "slice_count": 2,
      "slices": " |เราสรุปได้ว่า d ของข้อนี้มีค่าเท่ากับ|",
      "edit_duration": 3.161,
      "edit_duration_all": 13.88,
      "is_forceout": false
    },
    {
      "message_id": 385,
      "editor_id": 33,
      "message_received": "รู้แล้ว",
      "slice_count": 1,
      "slices": " รู้แล้ว|",
      "edit_duration": 14.513,
      "edit_duration_all": 14.513,
      "is_forceout": false
    },
    {
      "message_id": 386,
      "editor_id": 33,
      "message_received": "A1 น่ะคืนนึง",
      "slice_count": 3,
      "slices": " A|1 น่ะ |ค|",
      "edit_duration": 12.639,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 387,
      "editor_id": 33,
      "message_received": "รู้ดีแล้วคือ",
      "slice_count": 1,
      "slices": "อ 1 รู้ดีแล้วคือ|",
      "edit_duration": 16.014,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 388,
      "editor_id": 33,
      "message_received": "เรานำมาแทนค่าในในสูตรของเราได้เลยเพื่อที่จะหา",
      "slice_count": 2,
      "slices": " |เรานำมาแทนค่าในสูตรของเราได้เลย เพื่อที่จะหา|",
      "edit_duration": 12.446,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 389,
      "editor_id": 33,
      "message_received": "พจน์ที่ n",
      "slice_count": 1,
      "slices": "พจน์ที่ n|",
      "edit_duration": 16.014,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 390,
      "editor_id": 13,
      "message_received": "ที่มันยังไม่ครบในโจทย์ถูกไหมคะ",
      "slice_count": 2,
      "slices": "ที่มันยังไม่ครบในโจทย์ |ถูกไหมคะ |",
      "edit_duration": 3.884,
      "edit_duration_all": 4.57,
      "is_forceout": false
    },
    {
      "message_id": 391,
      "editor_id": 13,
      "message_received": "วุฒิยังไม่ทราบคือพจน์ที่เท่าไหร่คะ",
      "slice_count": 1,
      "slices": "พจน์ยังไม่ทราบคือพจน์ที่เท่าไรคะ |",
      "edit_duration": 6,
      "edit_duration_all": 6,
      "is_forceout": false
    },
    {
      "message_id": 392,
      "editor_id": 13,
      "message_received": "คือบทที่ 4 และพจน์ที่ 5 2 คนใช่ไหมคะเพราะพุธที่ 1",
      "slice_count": 3,
      "slices": "คือพจน์ที่ 4 และพจน์ที่ 5 |2 พจน์ใช่ไหมคะ| เพราะพจน์ที่ 1|",
      "edit_duration": 5.669,
      "edit_duration_all": 11.829,
      "is_forceout": false
    },
    {
      "message_id": 393,
      "editor_id": 13,
      "message_received": "ให้มาแล้วคืนนึง",
      "slice_count": 2,
      "slices": " |ให้มาแล้วคืนนึง|",
      "edit_duration": 10.26,
      "edit_duration_all": 14.414,
      "is_forceout": false
    },
    {
      "message_id": 394,
      "editor_id": 13,
      "message_received": "บทที่ 2 จดให้มาแล้วคือ",
      "slice_count": 3,
      "slices": "บทที่ 2 พจน์|ให้มาแล้ว |คือ|",
      "edit_duration": 11.599,
      "edit_duration_all": 13.691,
      "is_forceout": false
    },
    {
      "message_id": 395,
      "editor_id": 13,
      "message_received": "3",
      "slice_count": 1,
      "slices": " 3 |",
      "edit_duration": 12.761,
      "edit_duration_all": 12.761,
      "is_forceout": false
    },
    {
      "message_id": 396,
      "editor_id": 33,
      "message_received": "และพจน์ที่ 3 จดให้มาแล้วคือ",
      "slice_count": 2,
      "slices": "และพจน์ที่ 3 |โจทย์ให้มาแล้วคือ|",
      "edit_duration": 3.867,
      "edit_duration_all": 9.718,
      "is_forceout": false
    },
    {
      "message_id": 397,
      "editor_id": 33,
      "message_received": "แต่ยังไม่ทราบคือพจน์ที่ 4 และพจน์ที่",
      "slice_count": 3,
      "slices": " 5 |แต่ยังไม่ทราบคือพจน์ที่ 4 |และพจน์ที่|",
      "edit_duration": 3.993,
      "edit_duration_all": 7.086,
      "is_forceout": false
    },
    {
      "message_id": 398,
      "editor_id": 33,
      "message_received": "เราก็สามารถหาได้เลยค่ะโดยการนำ",
      "slice_count": 3,
      "slices": " 5 |เราก็สามารถหาได้เลยค่ะ |โดยการนำ |",
      "edit_duration": 2.227,
      "edit_duration_all": 4.338,
      "is_forceout": false
    },
    {
      "message_id": 399,
      "editor_id": 33,
      "message_received": "สูตรนี้มา",
      "slice_count": 2,
      "slices": "อย่างไรคะ |นำสูตรนี้มา|",
      "edit_duration": 7.36,
      "edit_duration_all": 12.6,
      "is_forceout": false
    },
    {
      "message_id": 400,
      "editor_id": 33,
      "message_received": "นี่มาดูเขาว่าถ้าเราแทนค่า A 1 = 1",
      "slice_count": 3,
      "slices": "หา |นี่มาดูเขาว่าถ้าเราแทนค่า| a1 = 1|",
      "edit_duration": 7.188,
      "edit_duration_all": 13.818,
      "is_forceout": false
    },
    {
      "message_id": 401,
      "editor_id": 33,
      "message_received": "บวก n n คือพจน์ที่เรา",
      "slice_count": 3,
      "slices": " |+ n |n คือพจน์ที่เรา |",
      "edit_duration": 10.543,
      "edit_duration_all": 16.253,
      "is_forceout": false
    },
    {
      "message_id": 402,
      "editor_id": 13,
      "message_received": "ไม่ทราบไหมคะเราไม่ทราบว่าติดเอ็นไว้",
      "slice_count": 3,
      "slices": "ไม่ทราบ ถูกไหมคะ |เราไม่ทราบ |เราติด n ไว้|",
      "edit_duration": 4.887,
      "edit_duration_all": 11.281,
      "is_forceout": false
    },
    {
      "message_id": 403,
      "editor_id": 13,
      "message_received": "ลบหนึ่งแล้วก็คูณด้วยดีๆคือ 22 เข้าไปคุณใช่ไหม",
      "slice_count": 4,
      "slices": " |- 1 |แล้วก็คูณด้วย d d  คือ 2 |2 เข้าไปคูณใช่ไหม|",
      "edit_duration": 5.89,
      "edit_duration_all": 16.015,
      "is_forceout": true
    },
    {
      "message_id": 404,
      "editor_id": 13,
      "message_received": "2 คันนึงได้จะได้เป็น 2 n",
      "slice_count": 2,
      "slices": "2 |ได้จะได้เป็น 2 n|",
      "edit_duration": 14.715,
      "edit_duration_all": 15.547,
      "is_forceout": false
    },
    {
      "message_id": 405,
      "editor_id": 13,
      "message_received": "และ -2",
      "slice_count": 1,
      "slices": "และ -2|",
      "edit_duration": 14.422,
      "edit_duration_all": 14.422,
      "is_forceout": false
    },
    {
      "message_id": 406,
      "editor_id": 13,
      "message_received": "ดูตามนะดูตามนะคะ",
      "slice_count": 1,
      "slices": "ดูตามนะดูตามนะคะ |",
      "edit_duration": 11.447,
      "edit_duration_all": 11.447,
      "is_forceout": false
    },
    {
      "message_id": 407,
      "editor_id": 13,
      "message_received": "เข้าใจนะ",
      "slice_count": 1,
      "slices": "เข้าใจนะ|",
      "edit_duration": 9.931,
      "edit_duration_all": 9.931,
      "is_forceout": false
    },
    {
      "message_id": 408,
      "editor_id": 13,
      "message_received": "สายตานะมึงนะเราก็จะได้ a n = อะไรคะ",
      "slice_count": 3,
      "slices": "สายตานะมึงนะเราก็จะได้ |a n = |อะไรคะ  |",
      "edit_duration": 5.427,
      "edit_duration_all": 6.378,
      "is_forceout": false
    },
    {
      "message_id": 409,
      "editor_id": 33,
      "message_received": "2 n - 1",
      "slice_count": 1,
      "slices": "2n - 1|",
      "edit_duration": 5.423,
      "edit_duration_all": 5.423,
      "is_forceout": false
    },
    {
      "message_id": 410,
      "editor_id": 33,
      "message_received": "งงตรงนี้",
      "slice_count": 2,
      "slices": " |งงตรงนี้|",
      "edit_duration": 3.572,
      "edit_duration_all": 4.521,
      "is_forceout": false
    },
    {
      "message_id": 411,
      "editor_id": 33,
      "message_received": "2 in 1",
      "slice_count": 2,
      "slices": " | มาอย่างไร 2n - 1|",
      "edit_duration": 3.133,
      "edit_duration_all": 13.764,
      "is_forceout": false
    },
    {
      "message_id": 412,
      "editor_id": 33,
      "message_received": "นักรบ 2 ตัวนี้มีไหม",
      "slice_count": 1,
      "slices": " 2 ตัวนี้มีไหม|",
      "edit_duration": 15.611,
      "edit_duration_all": 15.611,
      "is_forceout": false
    },
    {
      "message_id": 413,
      "editor_id": 33,
      "message_received": "1 ตรงเนี้ย",
      "slice_count": 2,
      "slices": " |1 ตรงนี้|",
      "edit_duration": 14.412,
      "edit_duration_all": 16.019,
      "is_forceout": true
    },
    {
      "message_id": 414,
      "editor_id": 33,
      "message_received": "มันเป็นจำนวนเต็มเหมือนกันใช่ไหมคะ",
      "slice_count": 2,
      "slices": " |มันเป็นจำนวนเต็มเหมือนกันใช่ไหมคะ |",
      "edit_duration": 13.588,
      "edit_duration_all": 14.589,
      "is_forceout": false
    },
    {
      "message_id": 415,
      "editor_id": 33,
      "message_received": "มันไม่ติดตัวแปรใดๆเลยเรานำมา",
      "slice_count": 2,
      "slices": "มันไม่ติดตัวแปรใด ๆ เลย |เรานำมา|",
      "edit_duration": 13.15,
      "edit_duration_all": 14.829,
      "is_forceout": false
    },
    {
      "message_id": 416,
      "editor_id": 33,
      "message_received": "บวกมาลบกันได้เลย",
      "slice_count": 1,
      "slices": "บวกมาลบกันได้เลย|",
      "edit_duration": 12.845,
      "edit_duration_all": 12.845,
      "is_forceout": false
    },
    {
      "message_id": 417,
      "editor_id": 33,
      "message_received": "ตามความจริงนะ 1 - 2 ได้ไหม",
      "slice_count": 3,
      "slices": " |ตามความจริงนะ |1 - 2 ได้ไหม |",
      "edit_duration": 8.482,
      "edit_duration_all": 10.953,
      "is_forceout": false
    },
    {
      "message_id": 418,
      "editor_id": 13,
      "message_received": "ไม่ได้ถ้าแบบนี้นะคะเวลาเรานำมาลดเรายังไม่ต้องดูเครื่องหมาย",
      "slice_count": 4,
      "slices": "ไม่ได้ |ถ้าแบบนี้นะคะ| เวลาเรานำมาลบ|เรายังไม่ต้องดูเครื่องหมาย |",
      "edit_duration": 2.147,
      "edit_duration_all": 5.841,
      "is_forceout": false
    },
    {
      "message_id": 419,
      "editor_id": 13,
      "message_received": "เรานำตัวเลขที่มากกว่าลบออกเลยเป็น 2 - 1 ใช่ไหมคะ",
      "slice_count": 3,
      "slices": "เรานำตัวเลขที่มากกว่าลบออกเลย |เป็น 2 - 1 |ถูกไหมคะ |",
      "edit_duration": 2.628,
      "edit_duration_all": 7.316,
      "is_forceout": false
    },
    {
      "message_id": 420,
      "editor_id": 13,
      "message_received": "เป็น 2 - 1 ไหมคะ",
      "slice_count": 2,
      "slices": "เป็น 2 - 1 |ถูกไหมคะ |",
      "edit_duration": 4.819,
      "edit_duration_all": 6.882,
      "is_forceout": false
    },
    {
      "message_id": 421,
      "editor_id": 13,
      "message_received": "ติดเครื่องหมายอะไรดูซิว่า",
      "slice_count": 3,
      "slices": "ทีนี้|ติดเครื่องหมายอะไร| ดูสิว่า|",
      "edit_duration": 5.833,
      "edit_duration_all": 9.625,
      "is_forceout": false
    },
    {
      "message_id": 422,
      "editor_id": 13,
      "message_received": "ตัวที่มีค่ามากมันติดเครื่องหมายอะไร",
      "slice_count": 1,
      "slices": "ตัวที่มีค่ามากมันติดเครื่องหมายอะไร |",
      "edit_duration": 5.636,
      "edit_duration_all": 5.636,
      "is_forceout": false
    },
    {
      "message_id": 423,
      "editor_id": 33,
      "message_received": "ยังข้อนี้ 2 มีค่ามากกว่า 1 ถุงไหมลูก",
      "slice_count": 2,
      "slices": "อย่างข้อนี้ 2 มีค่ามากกว่า 1 |ถูกไหมลูก|",
      "edit_duration": 8.813,
      "edit_duration_all": 12.969,
      "is_forceout": false
    },
    {
      "message_id": 424,
      "editor_id": 33,
      "message_received": "ใช่ไหม 2 มีค่ามากกว่า 1 ใช่ไหม",
      "slice_count": 2,
      "slices": " |ใช่ไหม 2 มีค่ามากกว่า 1 ใช่ไหม|",
      "edit_duration": 10.326,
      "edit_duration_all": 11.787,
      "is_forceout": false
    },
    {
      "message_id": 425,
      "editor_id": 33,
      "message_received": "ชายและหน้าเลข 2 เป็นเครื่องหมายอะไร",
      "slice_count": 3,
      "slices": " | ใช่ |และหน้าเลข 2 เป็นเครื่องหมายอะไร|",
      "edit_duration": 7.013,
      "edit_duration_all": 11.393,
      "is_forceout": false
    },
    {
      "message_id": 426,
      "editor_id": 33,
      "message_received": "เครื่องหมายลบ",
      "slice_count": 2,
      "slices": " |เครื่องหมายลบ|",
      "edit_duration": 9.021,
      "edit_duration_all": 9.861,
      "is_forceout": false
    },
    {
      "message_id": 427,
      "editor_id": 33,
      "message_received": "คำตอบที่ได้ก็เลยต้องติดลบด้วย",
      "slice_count": 2,
      "slices": " |คำตอบที่ได้ก็เลยต้องติดลบด้วย|",
      "edit_duration": 7.139,
      "edit_duration_all": 9.38,
      "is_forceout": false
    },
    {
      "message_id": 428,
      "editor_id": 33,
      "message_received": "2 - 1 เท่ากับ 1 นะถูกแล้ว",
      "slice_count": 2,
      "slices": " |2 - 1 เท่ากับ 1 น่ะ ถูกแล้ว |",
      "edit_duration": 6.185,
      "edit_duration_all": 10.468,
      "is_forceout": false
    },
    {
      "message_id": 429,
      "editor_id": 13,
      "message_received": "ต้องติดเครื่องหมายลบ",
      "slice_count": 1,
      "slices": "แต่ต้องติดเครื่องหมายลบ|",
      "edit_duration": 6.608,
      "edit_duration_all": 6.608,
      "is_forceout": false
    },
    {
      "message_id": 430,
      "editor_id": 13,
      "message_received": "ชายชาย",
      "slice_count": 3,
      "slices": " |นั่นแหละ ใช่ ๆ ||",
      "edit_duration": 2.802,
      "edit_duration_all": 12.667,
      "is_forceout": false
    },
    {
      "message_id": 431,
      "editor_id": 13,
      "message_received": "หน้าเลข 2 เป็นเครื่องหมายลบนั่นเอง",
      "slice_count": 1,
      "slices": "เพราะว่าหน้าเลข 2 เป็นเครื่องหมายลบนั่นเอง|",
      "edit_duration": 9.078,
      "edit_duration_all": 9.078,
      "is_forceout": false
    },
    {
      "message_id": 432,
      "editor_id": 13,
      "message_received": "เราได้มาแล้วค่ะอันนี้เป็นอะไรคะ",
      "slice_count": 3,
      "slices": " |เราได้มาแล้วค่ะ |อันนี้เป็นอะไรคะ |",
      "edit_duration": 6.144,
      "edit_duration_all": 7.693,
      "is_forceout": false
    },
    {
      "message_id": 433,
      "editor_id": 13,
      "message_received": "พจน์ทั่วไปถูกไหมพจน์ทั่วไปที่เราจะนำมาหา",
      "slice_count": 3,
      "slices": "พจน์ทั่วไปถูกไหม |พจน์ทั่วไป|ที่เราจะนำมาหา|",
      "edit_duration": 3.517,
      "edit_duration_all": 5.78,
      "is_forceout": false
    },
    {
      "message_id": 434,
      "editor_id": 13,
      "message_received": "พจน์ที่ 4 และพจน์ที่ 5 ที่เราต้องการทราบถูกไหมคะ",
      "slice_count": 5,
      "slices": " |พจน์ที่ 4 |และพจน์ที่ 5 |ที่เราต้องการทราบ |ถูกไหมคะ  |",
      "edit_duration": 1.698,
      "edit_duration_all": 5.058,
      "is_forceout": false
    },
    {
      "message_id": 435,
      "editor_id": 33,
      "message_received": "โอเคนะตามไม่ทันนะไอ้ตามไม่ทันบอกนะลูก",
      "slice_count": 3,
      "slices": "โอเคนะ |ตามให้ทันนะ |ใครตามไม่ทันบอกนะลูก|",
      "edit_duration": 2.748,
      "edit_duration_all": 11.973,
      "is_forceout": false
    },
    {
      "message_id": 436,
      "editor_id": 33,
      "message_received": "นึกว่าเจนให้ค่ารถเมล์",
      "slice_count": 2,
      "slices": " |เดี๋ยวครูเจนให้ค่ารถเมล์|",
      "edit_duration": 9.299,
      "edit_duration_all": 15.21,
      "is_forceout": false
    },
    {
      "message_id": 437,
      "editor_id": 33,
      "message_received": "ขึ้นรถเมล์ตามไม่ทัน",
      "slice_count": 3,
      "slices": " |ขึ้นรถเมล์ตาม |ไม่ทัน|",
      "edit_duration": 11.258,
      "edit_duration_all": 14.665,
      "is_forceout": false
    },
    {
      "message_id": 438,
      "editor_id": 33,
      "message_received": "มาถึงตรงนี้เราก็สามารถหาพจน์ที่ 4 ได้เลย",
      "slice_count": 2,
      "slices": " |มาถึงตรงนี้เราก็สามารถหาพจน์ที่ 4 ได้เลย|",
      "edit_duration": 10.884,
      "edit_duration_all": 13.571,
      "is_forceout": false
    },
    {
      "message_id": 439,
      "editor_id": 33,
      "message_received": "โดยแทนค่า",
      "slice_count": 2,
      "slices": " |โดยแทนค่า|",
      "edit_duration": 11.759,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 440,
      "editor_id": 33,
      "message_received": "KN ก็เป็น A4",
      "slice_count": 1,
      "slices": " nก็เป็น a4|",
      "edit_duration": 15.013,
      "edit_duration_all": 15.013,
      "is_forceout": false
    },
    {
      "message_id": 441,
      "editor_id": 33,
      "message_received": "แผ่น NS =",
      "slice_count": 2,
      "slices": " |แผ่น ns =|",
      "edit_duration": 13.273,
      "edit_duration_all": 16.015,
      "is_forceout": true
    },
    {
      "message_id": 442,
      "editor_id": 33,
      "message_received": "เลข 4 ไปเลย",
      "slice_count": 1,
      "slices": "เลข 4 ไปเลย|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 443,
      "editor_id": 13,
      "message_received": "ชายค่ะ",
      "slice_count": 1,
      "slices": "ใช่ค่ะ |",
      "edit_duration": 5.392,
      "edit_duration_all": 5.392,
      "is_forceout": false
    },
    {
      "message_id": 444,
      "editor_id": 13,
      "message_received": "A4 ก็จะกลับไงก็ 2 x",
      "slice_count": 3,
      "slices": "เพราะฉะนั้น |a4 ก็จะเท่ากัน |ก็ 2 x|",
      "edit_duration": 6.45,
      "edit_duration_all": 12.751,
      "is_forceout": false
    },
    {
      "message_id": 445,
      "editor_id": 13,
      "message_received": "n คือเลข 4 ใช่ไหมคือ 2 * 4 เลยใช่แล้วลบด้วย",
      "slice_count": 4,
      "slices": " |n คือเลข 4 ใช่ไหมคือ 2 x 4| เลยใช่ |แล้วลบด้วย|",
      "edit_duration": 7.299,
      "edit_duration_all": 12.124,
      "is_forceout": false
    },
    {
      "message_id": 446,
      "editor_id": 13,
      "message_received": "มันก็จะเป็นการบวกลบเลขธรรมดาแล้วทีนี้",
      "slice_count": 2,
      "slices": " |มันก็จะเป็นการบวกลบเลขธรรมดาแล้วทีนี้|",
      "edit_duration": 8.366,
      "edit_duration_all": 8.918,
      "is_forceout": false
    },
    {
      "message_id": 447,
      "editor_id": 13,
      "message_received": "2 * 4 เท่าไหร่คะ",
      "slice_count": 3,
      "slices": " |2 x| 4 เท่าไรคะ|",
      "edit_duration": 6.893,
      "edit_duration_all": 13.095,
      "is_forceout": false
    },
    {
      "message_id": 448,
      "editor_id": 13,
      "message_received": "2 * 4",
      "slice_count": 3,
      "slices": " |2 x| 4|",
      "edit_duration": 11.37,
      "edit_duration_all": 13.895,
      "is_forceout": false
    },
    {
      "message_id": 449,
      "editor_id": 13,
      "message_received": "ซ้อมไว้ซ้อมไว้ใครจะไปแข่งคณิตศาสตร์ซ้อมไว้นะคะ",
      "slice_count": 3,
      "slices": " ซ้อมไว้ |ซ้อมไว้ |ใครจะไปแข่งคณิตศาสตร์ซ้อมไว้นะคะ  |",
      "edit_duration": 11.149,
      "edit_duration_all": 13.572,
      "is_forceout": false
    },
    {
      "message_id": 450,
      "editor_id": 33,
      "message_received": "2 * 4",
      "slice_count": 1,
      "slices": "2 x 4 |",
      "edit_duration": 4.56,
      "edit_duration_all": 4.56,
      "is_forceout": false
    },
    {
      "message_id": 451,
      "editor_id": 33,
      "message_received": "แป๊บนึงมากค่ะ 2 + 4 = 8 - ออก 1",
      "slice_count": 2,
      "slices": " 8 เก่งมากค่ะ| 2 + 4 = 8 ลบออก 1|",
      "edit_duration": 6.559,
      "edit_duration_all": 11.794,
      "is_forceout": false
    },
    {
      "message_id": 452,
      "editor_id": 33,
      "message_received": "7 ซองบทที่ 4 ตรงนี้ได้แล้วคือเลข",
      "slice_count": 3,
      "slices": " |7 พจน์ที่ 4 ตรงนี้ได้แล้ว |คือเลข|",
      "edit_duration": 5.751,
      "edit_duration_all": 15.058,
      "is_forceout": false
    },
    {
      "message_id": 453,
      "editor_id": 33,
      "message_received": "เจ็บ",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 14.381,
      "edit_duration_all": 14.381,
      "is_forceout": false
    },
    {
      "message_id": 454,
      "editor_id": 33,
      "message_received": "ยังไม่จบนะ",
      "slice_count": 2,
      "slices": " 7 |ยังไม่จบนะ|",
      "edit_duration": 11.755,
      "edit_duration_all": 13.091,
      "is_forceout": false
    },
    {
      "message_id": 455,
      "editor_id": 33,
      "message_received": "เพราะเขาบอกว่าต้องเป็น 5 พจน์แรก",
      "slice_count": 1,
      "slices": " เพราะเขาบอกว่าต้องเป็น 5 พจน์แรก|",
      "edit_duration": 11.302,
      "edit_duration_all": 11.302,
      "is_forceout": false
    },
    {
      "message_id": 456,
      "editor_id": 33,
      "message_received": "เราก็ต้องหาคนที่ 5",
      "slice_count": 2,
      "slices": " |เราก็ต้องหาคนที่ 5|",
      "edit_duration": 9.287,
      "edit_duration_all": 10.695,
      "is_forceout": false
    },
    {
      "message_id": 457,
      "editor_id": 33,
      "message_received": "ตี 5 แผ่น A5 ไปเลยใช่ไหมคะ",
      "slice_count": 3,
      "slices": " | a5 |แทน a5 ไปเลยใช่ไหมคะ |",
      "edit_duration": 5.574,
      "edit_duration_all": 16.013,
      "is_forceout": true
    },
    {
      "message_id": 458,
      "editor_id": 13,
      "message_received": "เท่ากับ",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 10.908,
      "edit_duration_all": 10.908,
      "is_forceout": false
    },
    {
      "message_id": 459,
      "editor_id": 13,
      "message_received": "2",
      "slice_count": 1,
      "slices": "= 2|",
      "edit_duration": 9.694,
      "edit_duration_all": 9.694,
      "is_forceout": false
    },
    {
      "message_id": 460,
      "editor_id": 13,
      "message_received": "x n",
      "slice_count": 1,
      "slices": " x n|",
      "edit_duration": 8.284,
      "edit_duration_all": 8.284,
      "is_forceout": false
    },
    {
      "message_id": 461,
      "editor_id": 13,
      "message_received": "เลข 5 แผงครับ",
      "slice_count": 5,
      "slices": " |n คือ |เลข 5 |แทนเข้าไปเลย| |",
      "edit_duration": 5.557,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 462,
      "editor_id": 13,
      "message_received": "2 * 5 = กาย 10 เก่งมาค่ะรอแป๊บนึง",
      "slice_count": 4,
      "slices": "2 x 5 |= |10 เก่งมาค่ะ |รอแป๊บหนึ่ง|",
      "edit_duration": 12.066,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 463,
      "editor_id": 13,
      "message_received": "ศิลปะป 1",
      "slice_count": 1,
      "slices": " 1|",
      "edit_duration": 16.011,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 464,
      "editor_id": 13,
      "message_received": "9 เก่งมากไม่น่ารักได้ยินเสียงด้วยนั่นคือ",
      "slice_count": 1,
      "slices": "9 เก่งมากไม่น่ารักได้ยินเสียงด้วยนั่นคือ|",
      "edit_duration": 9.978,
      "edit_duration_all": 9.978,
      "is_forceout": false
    },
    {
      "message_id": 465,
      "editor_id": 13,
      "message_received": "บทที่ 5 เท่ากับ",
      "slice_count": 1,
      "slices": "บทที่ 5 เท่ากับ|",
      "edit_duration": 8.509,
      "edit_duration_all": 8.509,
      "is_forceout": false
    },
    {
      "message_id": 466,
      "editor_id": 13,
      "message_received": "ได้ครบแล้วนะพูดแล้วนะตามที่โจทย์ต้องการทราบแล้ว",
      "slice_count": 1,
      "slices": "ได้ครบแล้วนะพูดแล้วนะตามที่โจทย์ต้องการทราบแล้ว |",
      "edit_duration": 2.54,
      "edit_duration_all": 2.54,
      "is_forceout": false
    },
    {
      "message_id": 467,
      "editor_id": 33,
      "message_received": "เราก็มาเขียนนะคะ 5 พจน์แรก",
      "slice_count": 2,
      "slices": "เราก็มาเขียนนะคะ |5 พจน์แรก |",
      "edit_duration": 3.059,
      "edit_duration_all": 3.924,
      "is_forceout": false
    },
    {
      "message_id": 468,
      "editor_id": 33,
      "message_received": "ก็คือ 135 ที่จดให้มา",
      "slice_count": 2,
      "slices": "ก็คือ 1 3 5 |ที่โจทย์ให้มา|",
      "edit_duration": 4.02,
      "edit_duration_all": 9.488,
      "is_forceout": false
    },
    {
      "message_id": 469,
      "editor_id": 33,
      "message_received": "ใช่ไหม",
      "slice_count": 1,
      "slices": "ใช่ไหม|",
      "edit_duration": 8.445,
      "edit_duration_all": 8.445,
      "is_forceout": false
    },
    {
      "message_id": 470,
      "editor_id": 33,
      "message_received": "และเห็ดที่เราหาได้",
      "slice_count": 2,
      "slices": " |และ 7 ที่เราหาได้|",
      "edit_duration": 6.068,
      "edit_duration_all": 10.384,
      "is_forceout": false
    },
    {
      "message_id": 471,
      "editor_id": 33,
      "message_received": "ได้เพิ่มขึ้นมา",
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      "is_forceout": false
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      "message_id": 472,
      "editor_id": 33,
      "message_received": "5 คนหรือยัง",
      "slice_count": 2,
      "slices": " |5 พจน์หรือยัง|",
      "edit_duration": 12.017,
      "edit_duration_all": 16.013,
      "is_forceout": true
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    {
      "message_id": 473,
      "editor_id": 33,
      "message_received": "1 2 3 4 5 ครบทั้ง 5 พจน์แล้วเราก็มาเขียน",
      "slice_count": 3,
      "slices": "1 2 3 4 5| ครบทั้ง 5 พจน์แล้ว |เราก็มาเขียน|",
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      "edit_duration_all": 13.097,
      "is_forceout": false
    },
    {
      "message_id": 474,
      "editor_id": 33,
      "message_received": "ในรูปผลบวกของลำดับ",
      "slice_count": 1,
      "slices": "ในรูปผลบวกของลำดับ |",
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      "edit_duration_all": 9.652,
      "is_forceout": false
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    {
      "message_id": 475,
      "editor_id": 13,
      "message_received": "นั่นคือเราจะหาอนุกรมกันและ",
      "slice_count": 1,
      "slices": "นั่นคือเราจะหาอนุกรมกันแล|",
      "edit_duration": 8.99,
      "edit_duration_all": 8.99,
      "is_forceout": false
    },
    {
      "message_id": 476,
      "editor_id": 13,
      "message_received": "sn หรือ S5 ใช่ไหมคะ",
      "slice_count": 2,
      "slices": "้ว จะได้ว่า |sn หรือ S5 ใช่ไหมคะ |",
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      "edit_duration_all": 6.579,
      "is_forceout": false
    },
    {
      "message_id": 477,
      "editor_id": 13,
      "message_received": "ตามโจทย์",
      "slice_count": 2,
      "slices": "s5 |ตามโจทย์|",
      "edit_duration": 8.909,
      "edit_duration_all": 9.686,
      "is_forceout": false
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    {
      "message_id": 478,
      "editor_id": 13,
      "message_received": "F5 ก็เท่ากับ 1 +",
      "slice_count": 3,
      "slices": " |s|5 ก็เท่ากับ 1 +|",
      "edit_duration": 6.097,
      "edit_duration_all": 9.785,
      "is_forceout": false
    },
    {
      "message_id": 479,
      "editor_id": 13,
      "message_received": "3 +",
      "slice_count": 1,
      "slices": "3 +|",
      "edit_duration": 7.844,
      "edit_duration_all": 7.844,
      "is_forceout": false
    },
    {
      "message_id": 480,
      "editor_id": 13,
      "message_received": "5 +",
      "slice_count": 1,
      "slices": "5 +|",
      "edit_duration": 6.704,
      "edit_duration_all": 6.704,
      "is_forceout": false
    },
    {
      "message_id": 481,
      "editor_id": 13,
      "message_received": "7 + 9",
      "slice_count": 1,
      "slices": "7 + 9|",
      "edit_duration": 5.045,
      "edit_duration_all": 5.045,
      "is_forceout": false
    },
    {
      "message_id": 482,
      "editor_id": 13,
      "message_received": "เอากลับ",
      "slice_count": 2,
      "slices": " ||",
      "edit_duration": 3.569,
      "edit_duration_all": 9.049,
      "is_forceout": false
    },
    {
      "message_id": 483,
      "editor_id": 13,
      "message_received": "25 วันนั้นนะครับผลบวกของ 5 พจน์แรกของ",
      "slice_count": 3,
      "slices": "= |25 เพระาะฉะนั้นนะคะ | ผลบวกของ 5 พจน์แรกของ|",
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      "edit_duration_all": 11.474,
      "is_forceout": false
    },
    {
      "message_id": 484,
      "editor_id": 13,
      "message_received": "135",
      "slice_count": 4,
      "slices": " |1 |3 |5|",
      "edit_duration": 9.222,
      "edit_duration_all": 11.526,
      "is_forceout": false
    },
    {
      "message_id": 485,
      "editor_id": 13,
      "message_received": "ก็คือเท่าไหร่คะ",
      "slice_count": 2,
      "slices": " |ก็คือเท่าไรคะ|",
      "edit_duration": 9.837,
      "edit_duration_all": 11.589,
      "is_forceout": false
    },
    {
      "message_id": 486,
      "editor_id": 13,
      "message_received": "25 นั่นเอง",
      "slice_count": 2,
      "slices": " |25 นั่นเอง |",
      "edit_duration": 9.874,
      "edit_duration_all": 10.355,
      "is_forceout": false
    },
    {
      "message_id": 487,
      "editor_id": 33,
      "message_received": "จะถามอะไรไหมคะเข้าใจไหมเข้าใจถ้าเข้าใจต้องทำตัวอย่างได้นะ",
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      "slices": "จะถามอะไรไหมคะ |เข้าใจไหม |ถ้าเข้าใจถ้าเข้าใจต้องทำตัวอย่างได้นะ|",
      "edit_duration": 2.281,
      "edit_duration_all": 7.851,
      "is_forceout": false
    },
    {
      "message_id": 488,
      "editor_id": 33,
      "message_received": "เดี๋ยวดูต่อไป",
      "slice_count": 2,
      "slices": " |เดี๋ยวดูต่อไป|",
      "edit_duration": 6.372,
      "edit_duration_all": 7.54,
      "is_forceout": false
    },
    {
      "message_id": 489,
      "editor_id": 33,
      "message_received": "เมื่อกี้เป็นวิธีแรก",
      "slice_count": 2,
      "slices": " |เมื่อกี้เป็นวิธีแรก|",
      "edit_duration": 1.031,
      "edit_duration_all": 3.783,
      "is_forceout": false
    },
    {
      "message_id": 490,
      "editor_id": 33,
      "message_received": "เป็นวิธีหนึ่งที่ในที่ใช้ในการหาอนุกรม",
      "slice_count": 1,
      "slices": " เป็นวิธีหนึ่งที่ในที่ใช้ในการหาอนุกรม|",
      "edit_duration": 5.022,
      "edit_duration_all": 5.022,
      "is_forceout": false
    },
    {
      "message_id": 491,
      "editor_id": 33,
      "message_received": "มันมีอีกวิธีนึงลูก",
      "slice_count": 2,
      "slices": " |มันมีอีกวิธีหนึ่งลูก|",
      "edit_duration": 2.951,
      "edit_duration_all": 4.787,
      "is_forceout": false
    },
    {
      "message_id": 492,
      "editor_id": 33,
      "message_received": "ที่ง่ายกว่าวิธีเมื่อกี้",
      "slice_count": 2,
      "slices": " |ที่ง่ายกว่าวิธีเมื่อกี้ |",
      "edit_duration": 2.66,
      "edit_duration_all": 4.076,
      "is_forceout": false
    },
    {
      "message_id": 493,
      "editor_id": 13,
      "message_received": "ได้คำตอบเหมือนกัน",
      "slice_count": 1,
      "slices": "แต่ได้คำตอบเหมือนกัน|",
      "edit_duration": 8.253,
      "edit_duration_all": 8.253,
      "is_forceout": false
    },
    {
      "message_id": 494,
      "editor_id": 13,
      "message_received": "มาดูนะวิธีนี้คืออะไรกันค่ะ",
      "slice_count": 4,
      "slices": " |มาดูนะ |วิธีนี้คืออะไร |โจทย์เดียวกันค่ะ |",
      "edit_duration": 3.473,
      "edit_duration_all": 10.577,
      "is_forceout": false
    },
    {
      "message_id": 495,
      "editor_id": 13,
      "message_received": "จงหา",
      "slice_count": 1,
      "slices": "จงหา|",
      "edit_duration": 14.345,
      "edit_duration_all": 14.345,
      "is_forceout": false
    },
    {
      "message_id": 496,
      "editor_id": 13,
      "message_received": "ผลบวกของ 5 พจน์แรกของลำดับ 135",
      "slice_count": 1,
      "slices": "ผลบวกของ 5 พจน์แรกของลำดับ 1 3 5|",
      "edit_duration": 11.119,
      "edit_duration_all": 11.119,
      "is_forceout": false
    },
    {
      "message_id": 497,
      "editor_id": 13,
      "message_received": "วิธีนี้เขาบอกว่าแค่เราสามารถหาผลต่างร่วม",
      "slice_count": 3,
      "slices": "... ไปเรื่อย ๆ |วิธีนี้เขาบอกว่า|แค่เราสามารถหาผลต่างร่วม|",
      "edit_duration": 2.926,
      "edit_duration_all": 5.54,
      "is_forceout": false
    },
    {
      "message_id": 498,
      "editor_id": 13,
      "message_received": "หรือหาค่าดี",
      "slice_count": 2,
      "slices": " |หรือหาค่า |",
      "edit_duration": 3.323,
      "edit_duration_all": 5.994,
      "is_forceout": false
    },
    {
      "message_id": 499,
      "editor_id": 13,
      "message_received": "ไม่ได้",
      "slice_count": 3,
      "slices": "d |ของลำดับนี่ได้ ||",
      "edit_duration": 3.538,
      "edit_duration_all": 10.85,
      "is_forceout": false
    },
    {
      "message_id": 500,
      "editor_id": 13,
      "message_received": "เราก็สามารถหาผลบวกได้เลย",
      "slice_count": 1,
      "slices": "เราก็สามารถหาผลบวกได้เลย |",
      "edit_duration": 8.093,
      "edit_duration_all": 8.093,
      "is_forceout": false
    },
    {
      "message_id": 501,
      "editor_id": 33,
      "message_received": "อนุกรมได้เลยมาดูว่าเป็นยังไง",
      "slice_count": 2,
      "slices": "หรือหาอนุกรมได้เลย |มาดูว่าเป็นอย่างไร|",
      "edit_duration": 8.297,
      "edit_duration_all": 10.245,
      "is_forceout": false
    },
    {
      "message_id": 502,
      "editor_id": 33,
      "message_received": "ดูหนัง",
      "slice_count": 2,
      "slices": " |ดู|",
      "edit_duration": 8.861,
      "edit_duration_all": 12.201,
      "is_forceout": false
    },
    {
      "message_id": 503,
      "editor_id": 33,
      "message_received": "หาค่า D",
      "slice_count": 2,
      "slices": "นะ |หาค่า |",
      "edit_duration": 9.771,
      "edit_duration_all": 16.025,
      "is_forceout": true
    },
    {
      "message_id": 504,
      "editor_id": 33,
      "message_received": "ถ้าดีหาได้จากอะไรนะ",
      "slice_count": 1,
      "slices": "d ค่า d หาได้จากอะไรนะ|",
      "edit_duration": 11.394,
      "edit_duration_all": 11.394,
      "is_forceout": false
    },
    {
      "message_id": 505,
      "editor_id": 33,
      "message_received": "คดีหาได้จ้า",
      "slice_count": 1,
      "slices": "  ค่า d หาได้จ|",
      "edit_duration": 16.017,
      "edit_duration_all": 16.017,
      "is_forceout": true
    },
    {
      "message_id": 506,
      "editor_id": 33,
      "message_received": "นำพดหลัง - หน้าใช่ไหมคะ",
      "slice_count": 1,
      "slices": "ากนำพจน์หลัง - หน้าใช่ไหมคะ |",
      "edit_duration": 16.025,
      "edit_duration_all": 16.025,
      "is_forceout": true
    },
    {
      "message_id": 507,
      "editor_id": 33,
      "message_received": "เอาคนที่อยู่ใกล้กันนะลูก",
      "slice_count": 1,
      "slices": "เอาคนที่อยู่ใกล้กันนะลูก|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 508,
      "editor_id": 33,
      "message_received": "มา 1 คู่",
      "slice_count": 1,
      "slices": "มา 1 คู่|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 509,
      "editor_id": 33,
      "message_received": "แล้วนำตัวเลขที่อยู่ข้างหลังลบตัวเลขที่อยู่ข้างหน้า",
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      "slices": " |แล้วนำตัวเลขที่อยู่ข้างหลังลบตัวเลขที่อยู่ข้างหน้า|",
      "edit_duration": 15.256,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 510,
      "editor_id": 13,
      "message_received": "วันนี้เอาคู่ 13 มา",
      "slice_count": 2,
      "slices": "อย่างข้อนี้ |เอาคู่ 1 3  มา|",
      "edit_duration": 7.331,
      "edit_duration_all": 9.443,
      "is_forceout": false
    },
    {
      "message_id": 511,
      "editor_id": 13,
      "message_received": "1 กับ 3",
      "slice_count": 1,
      "slices": "1 กับ 3|",
      "edit_duration": 8.122,
      "edit_duration_all": 8.122,
      "is_forceout": false
    },
    {
      "message_id": 512,
      "editor_id": 13,
      "message_received": "ตามอยู่ข้างหลังใช่ไหมเอา 3 - ตัวข้างหน้าคือเลข 1",
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      "slices": " |3 อยู่ข้างหลังใช่ไหม |เอา 3 ลบวข้างหน้า |คือ |เลข 1|",
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      "edit_duration_all": 10.12,
      "is_forceout": false
    },
    {
      "message_id": 513,
      "editor_id": 13,
      "message_received": "เราก็จะได้คำตอบคือ",
      "slice_count": 2,
      "slices": " |เราก็จะได้คำตอบคือ|",
      "edit_duration": 8.59,
      "edit_duration_all": 10.56,
      "is_forceout": false
    },
    {
      "message_id": 514,
      "editor_id": 13,
      "message_received": "ลองพิสูจน์ดูว่าใช่หรือไม่ว่า 3 - 1 = 2",
      "slice_count": 3,
      "slices": " 2 |ลองพิสูจน์ดูว่าใช่หรือไม่ว่า |3 - 1 = 2|",
      "edit_duration": 5.165,
      "edit_duration_all": 8.276,
      "is_forceout": false
    },
    {
      "message_id": 515,
      "editor_id": 13,
      "message_received": "จริงและ 5 - 3 เท่ากับ 2 ไหม",
      "slice_count": 2,
      "slices": " จริง |และ 5 - 3 = 2 ไหม |",
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      "edit_duration_all": 8.315,
      "is_forceout": false
    },
    {
      "message_id": 516,
      "editor_id": 33,
      "message_received": "ลบออก 3 เท่ากับ 2 ไหม",
      "slice_count": 1,
      "slices": "5 ลบออก 3 เท่ากับ 2 ไหม|",
      "edit_duration": 7.511,
      "edit_duration_all": 7.511,
      "is_forceout": false
    },
    {
      "message_id": 517,
      "editor_id": 33,
      "message_received": "ลบออก",
      "slice_count": 2,
      "slices": " |5 ลบออก|",
      "edit_duration": 5.42,
      "edit_duration_all": 10.292,
      "is_forceout": false
    },
    {
      "message_id": 518,
      "editor_id": 33,
      "message_received": "เท่ากับ 2 ไหม",
      "slice_count": 1,
      "slices": " 3 เท่ากับ 2 ไหม|",
      "edit_duration": 7.709,
      "edit_duration_all": 7.709,
      "is_forceout": false
    },
    {
      "message_id": 519,
      "editor_id": 33,
      "message_received": "เอาไหมเอาไหม",
      "slice_count": 3,
      "slices": " |เท่าไหม |เท่าไหม|",
      "edit_duration": 4.548,
      "edit_duration_all": 10.873,
      "is_forceout": false
    },
    {
      "message_id": 520,
      "editor_id": 33,
      "message_received": "เอาใช่ไหมคะ",
      "slice_count": 3,
      "slices": " |เท่าใช่ไหมคะ| |",
      "edit_duration": 9.326,
      "edit_duration_all": 13.727,
      "is_forceout": false
    },
    {
      "message_id": 521,
      "editor_id": 33,
      "message_received": "ถ้าเท่ากันไปเรื่อยๆแบบนี้ก็แสดงว่าดีเท่ากับ 2",
      "slice_count": 2,
      "slices": "ถ้าเท่ากันไปเรื่อย ๆ แบบนี้| ก็แสดงว่า d เท่ากับ 2|",
      "edit_duration": 10.106,
      "edit_duration_all": 16.019,
      "is_forceout": true
    },
    {
      "message_id": 522,
      "editor_id": 33,
      "message_received": "พอทราบค่าดีนะคะเขาบอกว่าให้พิจารณาเลยค่ะว่า",
      "slice_count": 2,
      "slices": " |พอทราบค่า d นะคะ เขาบอกว่าให้พิจารณาเลยค่ะ ว่า|",
      "edit_duration": 11.3,
      "edit_duration_all": 16.016,
      "is_forceout": true
    },
    {
      "message_id": 523,
      "editor_id": 33,
      "message_received": "พจน์ที่ 1 ไปพจน์ที่ 2 ห่างกัน 2 ใช่ไหม",
      "slice_count": 1,
      "slices": "พจน์ที่ 1 ไปพจน์ที่ 2 ห่างกัน 2 ใช่ไหม |",
      "edit_duration": 15.215,
      "edit_duration_all": 15.215,
      "is_forceout": false
    },
    {
      "message_id": 524,
      "editor_id": 13,
      "message_received": "ห่างกัน 2 ก็คือบวกเพิ่ม 1 บวกเพิ่มอีก 2",
      "slice_count": 3,
      "slices": "ห่างกัน 2 |ก็คือบวกเพิ่ม |พจน์ที่ 1 บวกเพิ่มอีก 2|",
      "edit_duration": 2.884,
      "edit_duration_all": 11.198,
      "is_forceout": false
    },
    {
      "message_id": 525,
      "editor_id": 13,
      "message_received": "เท่ากับพจน์ที่ 2",
      "slice_count": 2,
      "slices": " |เท่ากับพจน์ที่ 2|",
      "edit_duration": 9.958,
      "edit_duration_all": 12.782,
      "is_forceout": false
    },
    {
      "message_id": 526,
      "editor_id": 13,
      "message_received": "ใช่หรือไม่",
      "slice_count": 1,
      "slices": "ใช่หรือไม่|",
      "edit_duration": 11.204,
      "edit_duration_all": 11.204,
      "is_forceout": false
    },
    {
      "message_id": 527,
      "editor_id": 13,
      "message_received": "อาวุธที่ 2 บวกเพิ่มอีก 2 เท่ากับคนที่ 3 ใช่หรือไม่",
      "slice_count": 3,
      "slices": " |พจน์|ที่ 2 บวกเพิ่มอีก 2 เท่ากับคนที่ 3 ใช่หรือไม่|",
      "edit_duration": 6.389,
      "edit_duration_all": 10.659,
      "is_forceout": false
    },
    {
      "message_id": 528,
      "editor_id": 13,
      "message_received": "จากนั้นเอาพุธที่ 3 บวกเพิ่มอีก 2 มันจะเข้ากับคนที่",
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      "slices": " |จากนั้นเอาพจน์ที่ 3 บวกเพิ่มอีก 2 มันจะเข้ากับคนที่ |",
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      "edit_duration_all": 8.874,
      "is_forceout": false
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    {
      "message_id": 529,
      "editor_id": 33,
      "message_received": "และพุธที่ 4 บวกเพิ่มอีก 2 มันจะเท่ากับ 5 ไปแบบนี้เรื่อยๆ",
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      "slices": "และพจน์ที่ 4 บวกเพิ่มอีก 2 |มันจะเท่ากับ 5 ไปแบบนี้เรื่อย ๆ |",
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      "edit_duration_all": 7.185,
      "is_forceout": false
    },
    {
      "message_id": 530,
      "editor_id": 33,
      "message_received": "แบบนี้เราก็จะสามารถหาพจน์ต่อไปได้ไม่ยากเลย",
      "slice_count": 2,
      "slices": " แบบนี้เราก็จะสามารถหาพจน์ต่อไปได้ |ไม่ยากเลย|",
      "edit_duration": 3.858,
      "edit_duration_all": 5.191,
      "is_forceout": false
    },
    {
      "message_id": 531,
      "editor_id": 33,
      "message_received": "มาดูพิสูจน์กันซิ",
      "slice_count": 2,
      "slices": " |มาดูพิสูจน์กันส|",
      "edit_duration": 2.654,
      "edit_duration_all": 6.138,
      "is_forceout": false
    },
    {
      "message_id": 532,
      "editor_id": 33,
      "message_received": "1",
      "slice_count": 2,
      "slices": "ิ |1|",
      "edit_duration": 4.999,
      "edit_duration_all": 13.834,
      "is_forceout": false
    },
    {
      "message_id": 533,
      "editor_id": 33,
      "message_received": "หมวก DD คือ 2",
      "slice_count": 1,
      "slices": "  + d d คือ 2|",
      "edit_duration": 11.693,
      "edit_duration_all": 11.693,
      "is_forceout": false
    },
    {
      "message_id": 534,
      "editor_id": 33,
      "message_received": "เท่ากับ 3 ไหมคะ",
      "slice_count": 2,
      "slices": " |เท่ากับ 3 ไหมคะ |",
      "edit_duration": 10.308,
      "edit_duration_all": 11.004,
      "is_forceout": false
    },
    {
      "message_id": 535,
      "editor_id": 33,
      "message_received": "1",
      "slice_count": 1,
      "slices": "1|",
      "edit_duration": 12.423,
      "edit_duration_all": 12.423,
      "is_forceout": false
    },
    {
      "message_id": 536,
      "editor_id": 33,
      "message_received": "2",
      "slice_count": 1,
      "slices": " + 2|",
      "edit_duration": 10.906,
      "edit_duration_all": 10.906,
      "is_forceout": false
    },
    {
      "message_id": 537,
      "editor_id": 33,
      "message_received": "เท่ากับ 3 ไหม",
      "slice_count": 1,
      "slices": " เท่ากับ 3 ไหม |",
      "edit_duration": 8.706,
      "edit_duration_all": 8.706,
      "is_forceout": false
    },
    {
      "message_id": 538,
      "editor_id": 13,
      "message_received": "เอาไหม",
      "slice_count": 1,
      "slices": "เ|",
      "edit_duration": 7.658,
      "edit_duration_all": 7.658,
      "is_forceout": false
    },
    {
      "message_id": 539,
      "editor_id": 13,
      "message_received": "ไหนว่าไม่เท่า",
      "slice_count": 3,
      "slices": "ท่าไหม |ใครว่าไม่ |เท่า|",
      "edit_duration": 5.237,
      "edit_duration_all": 11.387,
      "is_forceout": false
    },
    {
      "message_id": 540,
      "editor_id": 13,
      "message_received": "เอาเท่าน้องแล้ว 3 + 2 ล่ะ",
      "slice_count": 3,
      "slices": " |เท่านะ |แล้ว 3 + 2 ล่ะ|",
      "edit_duration": 6.731,
      "edit_duration_all": 10.627,
      "is_forceout": false
    },
    {
      "message_id": 541,
      "editor_id": 13,
      "message_received": "เท่ากับ 5 ไหม",
      "slice_count": 2,
      "slices": " |เท่ากับ 5 ไหม|",
      "edit_duration": 8.92,
      "edit_duration_all": 10.376,
      "is_forceout": false
    },
    {
      "message_id": 542,
      "editor_id": 13,
      "message_received": "3 + 2",
      "slice_count": 2,
      "slices": " |3 + 2|",
      "edit_duration": 6.929,
      "edit_duration_all": 8.105,
      "is_forceout": false
    },
    {
      "message_id": 543,
      "editor_id": 13,
      "message_received": "เท่ากับ 5 ไหมเท่ากับ 55 ชายแต่นั้นมาดูเขาอ่ะ",
      "slice_count": 3,
      "slices": "เท่ากับ 5 ไหม |เท่ากับ 5 |5 จ|",
      "edit_duration": 1.863,
      "edit_duration_all": 11.122,
      "is_forceout": false
    },
    {
      "message_id": 544,
      "editor_id": 13,
      "message_received": "5 + 2 ค่ะ",
      "slice_count": 2,
      "slices": "ากนั้นมาดูค่ะ |5 + 2 ค่ะ |",
      "edit_duration": 9.486,
      "edit_duration_all": 10.796,
      "is_forceout": false
    },
    {
      "message_id": 545,
      "editor_id": 13,
      "message_received": "เอา 5 + 2 ค่ะ",
      "slice_count": 1,
      "slices": "เอา 5 + 2 ค่ะ |",
      "edit_duration": 7.866,
      "edit_duration_all": 7.866,
      "is_forceout": false
    },
    {
      "message_id": 546,
      "editor_id": 13,
      "message_received": "เป็นเท่าไหร่คะ",
      "slice_count": 1,
      "slices": "เป็นเท่าไรคะ|",
      "edit_duration": 9.867,
      "edit_duration_all": 9.867,
      "is_forceout": false
    },
    {
      "message_id": 547,
      "editor_id": 13,
      "message_received": "หนูแค่ 7แสนวอนลำดับต่อไปคือ 7 ละ",
      "slice_count": 1,
      "slices": "หนูแค่ 7 แสดงว่าลำดับต่อไปคือ 7 แล้ว |",
      "edit_duration": 9.266,
      "edit_duration_all": 9.266,
      "is_forceout": false
    },
    {
      "message_id": 548,
      "editor_id": 33,
      "message_received": "ฉันเอา 7 + 2 ค่ะ",
      "slice_count": 1,
      "slices": "จากนั้นเอา 7 + 2 ค่ะ |",
      "edit_duration": 7.393,
      "edit_duration_all": 7.393,
      "is_forceout": false
    },
    {
      "message_id": 549,
      "editor_id": 33,
      "message_received": "ลำดับต่อไปคือเลข 9 แบบนี้เราสามารถหาลำดับถัดไปเรื่อยๆนะคะ",
      "slice_count": 3,
      "slices": "9 |ลำดับต่อไปคือเลข 9 |แบบนี้เราสามารถหาลำดับถัดไปเรื่อย ๆ นะคะ |",
      "edit_duration": 2.354,
      "edit_duration_all": 5.92,
      "is_forceout": false
    },
    {
      "message_id": 550,
      "editor_id": 33,
      "message_received": "ได้ไหม",
      "slice_count": 1,
      "slices": "ได้เรื่ิย ๆ ไหม |",
      "edit_duration": 16.024,
      "edit_duration_all": 16.024,
      "is_forceout": true
    },
    {
      "message_id": 551,
      "editor_id": 33,
      "message_received": "เราสามารถหาลำดับถัดไปได้เรื่อยๆไหมคะ",
      "slice_count": 1,
      "slices": "เราสามารถหาลำดับถัดไปได้เรื่อย ๆ ไหมคะ |",
      "edit_duration": 14.198,
      "edit_duration_all": 14.198,
      "is_forceout": false
    },
    {
      "message_id": 552,
      "editor_id": 33,
      "message_received": "เพราะเรารู้ว่าดีมันมีค่าเท่ากับ 2",
      "slice_count": 2,
      "slices": "เพราะเรารู้ว่า d |มันมีค่าเท่ากับ 2|",
      "edit_duration": 12.091,
      "edit_duration_all": 13.828,
      "is_forceout": false
    },
    {
      "message_id": 553,
      "editor_id": 33,
      "message_received": "พูดแล้วมันห่างกันคืออะไรคะ",
      "slice_count": 2,
      "slices": " |พจน์แล้วมันห่างกันคืออะไรคะ |",
      "edit_duration": 11.337,
      "edit_duration_all": 15.659,
      "is_forceout": false
    },
    {
      "message_id": 554,
      "editor_id": 13,
      "message_received": "มันเพิ่มขึ้นทีละ 2 2 2",
      "slice_count": 1,
      "slices": "หรือมันเพิ่มขึ้นทีละ 2 2 2|",
      "edit_duration": 6.461,
      "edit_duration_all": 6.461,
      "is_forceout": false
    },
    {
      "message_id": 555,
      "editor_id": 13,
      "message_received": "ลำดับถัดไปคือเอา 9+ กับ 2 ถูกไหมคะ",
      "slice_count": 5,
      "slices": " |แสดงว่าลำดับถัดไปคือเอา |9 บวกกับ 2 |ถูกไหมคะ| |",
      "edit_duration": 2.836,
      "edit_duration_all": 11.052,
      "is_forceout": false
    },
    {
      "message_id": 556,
      "editor_id": 13,
      "message_received": "9 + 2 เป็นเท่าไหร่",
      "slice_count": 2,
      "slices": "9 + 2 เ|ป็นเท่าไ|",
      "edit_duration": 8.111,
      "edit_duration_all": 10.615,
      "is_forceout": false
    },
    {
      "message_id": 557,
      "editor_id": 13,
      "message_received": "9",
      "slice_count": 2,
      "slices": "ร |9|",
      "edit_duration": 7.996,
      "edit_duration_all": 9.229,
      "is_forceout": false
    },
    {
      "message_id": 558,
      "editor_id": 13,
      "message_received": "บวกเพิ่มอีก 2",
      "slice_count": 1,
      "slices": "บวกเพิ่มอีก 2|",
      "edit_duration": 7.62,
      "edit_duration_all": 7.62,
      "is_forceout": false
    },
    {
      "message_id": 559,
      "editor_id": 13,
      "message_received": "11 ชาย",
      "slice_count": 2,
      "slices": " |11 ใ|",
      "edit_duration": 4.871,
      "edit_duration_all": 7.01,
      "is_forceout": false
    },
    {
      "message_id": 560,
      "editor_id": 13,
      "message_received": "ลำดับถัดไปคือ 11",
      "slice_count": 4,
      "slices": "ช้ |เพราะฉะนั้น |ลำดับถัดไป |คือ 11|",
      "edit_duration": 5.284,
      "edit_duration_all": 9.249,
      "is_forceout": false
    },
    {
      "message_id": 561,
      "editor_id": 13,
      "message_received": "ไปอีกเรื่อยๆแล้วก็สมัครหาได้เรื่อยๆ",
      "slice_count": 2,
      "slices": " |ไปอีกเรื่อย ๆ แล้วก็สามารถหาได้เรื่อย ๆ |",
      "edit_duration": 5.817,
      "edit_duration_all": 13.385,
      "is_forceout": false
    },
    {
      "message_id": 562,
      "editor_id": 13,
      "message_received": "แต่ในโจทย์ข้อนี้เราไม่ต้องหาต่อแล้วค่ะเพราะ",
      "slice_count": 2,
      "slices": "แต่ในโจทย์ข้อนี้เราไม่ต้องหาต่อแล้วค่ะ |เพราะ |",
      "edit_duration": 10.544,
      "edit_duration_all": 11.023,
      "is_forceout": false
    },
    {
      "message_id": 563,
      "editor_id": 33,
      "message_received": "โจทย์เขาถามแค่ 5 พจน์แรกใช่ไหมคะ",
      "slice_count": 1,
      "slices": "โจทย์เขาถามแค่ 5 พจน์แรกใช่ไหมคะ |",
      "edit_duration": 5.183,
      "edit_duration_all": 5.183,
      "is_forceout": false
    },
    {
      "message_id": 564,
      "editor_id": 33,
      "message_received": "ไปนั้นเราก็จะหาได้",
      "slice_count": 2,
      "slices": "เพราะฉะนั้น |เราก็จะหาได้|",
      "edit_duration": 7.306,
      "edit_duration_all": 11.066,
      "is_forceout": false
    },
    {
      "message_id": 565,
      "editor_id": 33,
      "message_received": "เอาแค่ 5 โพสต์นี้เท่านั้นพอได้ 5 พจน์แล้วเราก็",
      "slice_count": 3,
      "slices": "เอาแค่ 5พจน์นี้เท่านั้น |พอได้ 5 พจน์แล้ว |เราก็|",
      "edit_duration": 5.892,
      "edit_duration_all": 10.433,
      "is_forceout": false
    },
    {
      "message_id": 566,
      "editor_id": 33,
      "message_received": "มาหาผลบวกของลำดับทั้ง 5",
      "slice_count": 1,
      "slices": "มาหาผลบวกของลำดับทั้ง 5|",
      "edit_duration": 7.136,
      "edit_duration_all": 7.136,
      "is_forceout": false
    },
    {
      "message_id": 567,
      "editor_id": 33,
      "message_received": "อนุกรมนั้นเองหาค่าของอนุกรมของลำดับนี้",
      "slice_count": 3,
      "slices": " |อนุกรมนั่นเอง |หาค่าของอนุกรมของลำดับนี้ |",
      "edit_duration": 2.815,
      "edit_duration_all": 6.574,
      "is_forceout": false
    },
    {
      "message_id": 568,
      "editor_id": 13,
      "message_received": "เป็น S5",
      "slice_count": 1,
      "slices": "นะคะ จะได้เป็น S5|",
      "edit_duration": 12.012,
      "edit_duration_all": 12.012,
      "is_forceout": false
    },
    {
      "message_id": 569,
      "editor_id": 13,
      "message_received": "เท่ากับ 1",
      "slice_count": 1,
      "slices": " = 1|",
      "edit_duration": 9.969,
      "edit_duration_all": 9.969,
      "is_forceout": false
    },
    {
      "message_id": 570,
      "editor_id": 13,
      "message_received": "+3",
      "slice_count": 1,
      "slices": "+3|",
      "edit_duration": 8.239,
      "edit_duration_all": 8.239,
      "is_forceout": false
    },
    {
      "message_id": 571,
      "editor_id": 13,
      "message_received": "+ 5 + 7 + 9",
      "slice_count": 1,
      "slices": "+ 5 + 7 + 9|",
      "edit_duration": 5.751,
      "edit_duration_all": 5.751,
      "is_forceout": false
    },
    {
      "message_id": 572,
      "editor_id": 13,
      "message_received": "ซึ่งคำตอบก็คืออะไรคะ",
      "slice_count": 2,
      "slices": " |ซึ่งคำตอบก็คือเท่าไรคะ|",
      "edit_duration": 3.682,
      "edit_duration_all": 12.131,
      "is_forceout": false
    },
    {
      "message_id": 573,
      "editor_id": 13,
      "message_received": "25",
      "slice_count": 1,
      "slices": " 25|",
      "edit_duration": 10.178,
      "edit_duration_all": 10.178,
      "is_forceout": false
    },
    {
      "message_id": 574,
      "editor_id": 13,
      "message_received": "เท่ากันไหมเท่ากันกับตัวอย่างแรกไหมคะ",
      "slice_count": 3,
      "slices": " |เท่ากันไหม |เท่ากันกับตัวอย่างแรกไหมคะ |",
      "edit_duration": 6.886,
      "edit_duration_all": 8.703,
      "is_forceout": false
    },
    {
      "message_id": 575,
      "editor_id": 13,
      "message_received": "ตัวอย่างที่คำตอบก็คือ",
      "slice_count": 2,
      "slices": "ตัวอย่างนี้ |คำตอบ ก็คือ|",
      "edit_duration": 7.69,
      "edit_duration_all": 9.115,
      "is_forceout": false
    },
    {
      "message_id": 576,
      "editor_id": 13,
      "message_received": "25",
      "slice_count": 1,
      "slices": "25|",
      "edit_duration": 7.467,
      "edit_duration_all": 7.467,
      "is_forceout": false
    },
    {
      "message_id": 577,
      "editor_id": 13,
      "message_received": "ตัวเดียวกันนะ",
      "slice_count": 2,
      "slices": " |โจทย์ตัวเดียวกันนะ|",
      "edit_duration": 4.901,
      "edit_duration_all": 8.67,
      "is_forceout": false
    },
    {
      "message_id": 578,
      "editor_id": 13,
      "message_received": "หาด้วยวิธีนี้คำตอบก็",
      "slice_count": 3,
      "slices": " |หาด้วยวิธีนี้ |คำตอบก็|",
      "edit_duration": 4.583,
      "edit_duration_all": 8.742,
      "is_forceout": false
    },
    {
      "message_id": 579,
      "editor_id": 13,
      "message_received": "อะไรนะ",
      "slice_count": 1,
      "slices": "อะไรค|",
      "edit_duration": 7.378,
      "edit_duration_all": 7.378,
      "is_forceout": false
    },
    {
      "message_id": 580,
      "editor_id": 13,
      "message_received": "25 เหมือนกัน",
      "slice_count": 2,
      "slices": "ะ |25 เหมือนกัน |",
      "edit_duration": 5.628,
      "edit_duration_all": 6.327,
      "is_forceout": false
    },
    {
      "message_id": 581,
      "editor_id": 33,
      "message_received": "คำตอบเดียวกัน",
      "slice_count": 1,
      "slices": "คำตอบเดียวกัน|",
      "edit_duration": 4.763,
      "edit_duration_all": 4.763,
      "is_forceout": false
    },
    {
      "message_id": 582,
      "editor_id": 33,
      "message_received": "วิธีการหาค่",
      "slice_count": 2,
      "slices": " |แต่วิธีการหา|",
      "edit_duration": 2.973,
      "edit_duration_all": 14.914,
      "is_forceout": false
    },
    {
      "message_id": 583,
      "editor_id": 33,
      "message_received": "นั่นเอง",
      "slice_count": 1,
      "slices": "แค่ต่างกันแค่นั้นเอง|",
      "edit_duration": 13.264,
      "edit_duration_all": 13.264,
      "is_forceout": false
    },
    {
      "message_id": 584,
      "editor_id": 33,
      "message_received": "มาถึงตรงนี้ลูกๆคิดว่า",
      "slice_count": 2,
      "slices": " |มาถึงตรงนี้ลูก ๆ คิดว่า|",
      "edit_duration": 9.854,
      "edit_duration_all": 11.371,
      "is_forceout": false
    },
    {
      "message_id": 585,
      "editor_id": 33,
      "message_received": "ระหว่างวิธีนี้ลูก",
      "slice_count": 2,
      "slices": " |ระหว่างวิธีนี้ลูก|",
      "edit_duration": 8.724,
      "edit_duration_all": 9.853,
      "is_forceout": false
    },
    {
      "message_id": 586,
      "editor_id": 33,
      "message_received": "วิธีนี้ลูก",
      "slice_count": 2,
      "slices": " |ระหว่างวิธีนี้ลูก|",
      "edit_duration": 6.837,
      "edit_duration_all": 10.882,
      "is_forceout": false
    },
    {
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      "message_received": "สวัสดีค่ะ 3 งั้น",
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      "editor_id": 33,
      "message_received": "load Test",
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      "message_received": "เรามาสรุป",
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      "message_received": "ลำดับ",
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      "message_received": "ไหมคะหรือการหาค่าของอนุกรม",
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      "slices": "ของลำดับที่โจทย์กำหนดมาให้|",
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      "message_received": "วิธีที่ลูกๆเลือก",
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      "message_received": "การหา",
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      "slices": "ผลต่างร่วมหรือหาค่า|",
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      "message_id": 646,
      "editor_id": 33,
      "message_received": "ใช่ไหมคะ",
      "slice_count": 1,
      "slices": " d ใช่ไหมคะ |",
      "edit_duration": 8.954,
      "edit_duration_all": 8.954,
      "is_forceout": false
    },
    {
      "message_id": 647,
      "editor_id": 33,
      "message_received": "อะไรคนเลือกวิธีนี้",
      "slice_count": 1,
      "slices": "หลาย ๆ คนเลือกวิธีนี้ |",
      "edit_duration": 12.373,
      "edit_duration_all": 12.373,
      "is_forceout": false
    },
    {
      "message_id": 648,
      "editor_id": 13,
      "message_received": "วันนี้มาดู",
      "slice_count": 1,
      "slices": "ทีนี้มาดู|",
      "edit_duration": 5.271,
      "edit_duration_all": 5.271,
      "is_forceout": false
    },
    {
      "message_id": 649,
      "editor_id": 13,
      "message_received": "มาเช็คความเข้าใจกันอีกครั้งหนึ่งคุณเจนมีจดบนกระดานให้ 2 ข้อ",
      "slice_count": 3,
      "slices": " |มาเช็กความเข้าใจกันอีกครั้งหนึ่ง |ครูเจนมีโจทย์บนกระดานให้ 2 ข้อ|",
      "edit_duration": 1.104,
      "edit_duration_all": 10.057,
      "is_forceout": false
    },
    {
      "message_id": 650,
      "editor_id": 13,
      "message_received": "ดูที่โจทก์นะ",
      "slice_count": 2,
      "slices": "นะคะ |ดูที่โจทย์นะ|",
      "edit_duration": 3.515,
      "edit_duration_all": 5.944,
      "is_forceout": false
    },
    {
      "message_id": 651,
      "editor_id": 13,
      "message_received": "จงหาผลบวกของ 5 พจน์แรกของ 258",
      "slice_count": 3,
      "slices": " |จงหาผลบวกของ 5 พจน์แรก |ของ 2 5 8 |",
      "edit_duration": 1.978,
      "edit_duration_all": 5.353,
      "is_forceout": false
    },
    {
      "message_id": 652,
      "editor_id": 13,
      "message_received": "มีลูกๆเนี่ยเลือกใช้วิธีการหาคำตอบ",
      "slice_count": 4,
      "slices": "นะคะ |โดย|ลูก ๆ นี่ |เลือกใช้วิธีการหาคำตอบ|",
      "edit_duration": 1.447,
      "edit_duration_all": 8.72,
      "is_forceout": false
    },
    {
      "message_id": 653,
      "editor_id": 13,
      "message_received": "น้าโดย",
      "slice_count": 2,
      "slices": "นะ |ดย|",
      "edit_duration": 7.075,
      "edit_duration_all": 9.297,
      "is_forceout": false
    },
    {
      "message_id": 654,
      "editor_id": 13,
      "message_received": "โดยการหาค่า D",
      "slice_count": 1,
      "slices": "โดยการหาค่า d |",
      "edit_duration": 7.376,
      "edit_duration_all": 7.376,
      "is_forceout": false
    },
    {
      "message_id": 655,
      "editor_id": 33,
      "message_received": "ออกมาก่อน",
      "slice_count": 1,
      "slices": "ออกมาก่อน |",
      "edit_duration": 3.405,
      "edit_duration_all": 3.405,
      "is_forceout": false
    },
    {
      "message_id": 656,
      "editor_id": 33,
      "message_received": "ถ้าดีจำให้ขึ้นใจนะ",
      "slice_count": 2,
      "slices": "ใช่ไหมคะ |ค่า d จำให้ขึ้นใจนะ|",
      "edit_duration": 2.954,
      "edit_duration_all": 8.786,
      "is_forceout": false
    },
    {
      "message_id": 657,
      "editor_id": 33,
      "message_received": "กลับไปที่โรงเรียนเรื่องนี้นะคะเราต้องรู้ว่าค่า Dr ยังไง",
      "slice_count": 2,
      "slices": " ตราบใดที่เราเรียนเรื่องนี้นะคะ| เราต้องรู้ว่าค่า d ยังไง|",
      "edit_duration": 12.831,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 658,
      "editor_id": 33,
      "message_received": "คุณยายมั่นใจว่าหลายคนถ้าเกิด",
      "slice_count": 1,
      "slices": "ครมั่นใจว่าหลายคนถ้าเกิด|",
      "edit_duration": 16.017,
      "edit_duration_all": 16.017,
      "is_forceout": true
    },
    {
      "message_id": 659,
      "editor_id": 33,
      "message_received": "ทำบ่อย",
      "slice_count": 1,
      "slices": "ทำบ่อย|",
      "edit_duration": 16.011,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 660,
      "editor_id": 33,
      "message_received": "ทำไปบ่อย",
      "slice_count": 1,
      "slices": "ทำไปบ่อย|",
      "edit_duration": 16.015,
      "edit_duration_all": 16.015,
      "is_forceout": true
    },
    {
      "message_id": 661,
      "editor_id": 33,
      "message_received": "จะเก่งจะเข้าใจแล้วก็จะจดจำได้",
      "slice_count": 2,
      "slices": " ๆ |จะเก่งจะเข้าใจแล้วก็จะจดจำได้|",
      "edit_duration": 14.346,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 662,
      "editor_id": 13,
      "message_received": "โจทย์ข้อนี้ค่ะลูก",
      "slice_count": 2,
      "slices": "ถูกไหม |อย่างโจทย์ข้อนี้ค่ะลูก|",
      "edit_duration": 5.837,
      "edit_duration_all": 9.454,
      "is_forceout": false
    },
    {
      "message_id": 663,
      "editor_id": 13,
      "message_received": "258",
      "slice_count": 2,
      "slices": " |2 5 8|",
      "edit_duration": 5.782,
      "edit_duration_all": 7.627,
      "is_forceout": false
    },
    {
      "message_id": 664,
      "editor_id": 13,
      "message_received": "ลองดูนะ 2558",
      "slice_count": 3,
      "slices": " |ลองดูนะ |2 5 8|",
      "edit_duration": 4.498,
      "edit_duration_all": 7.851,
      "is_forceout": false
    },
    {
      "message_id": 665,
      "editor_id": 13,
      "message_received": "มีค่าดีเท่าไหร่คะ",
      "slice_count": 3,
      "slices": " |มีค่า d |เท่าไรคะ|",
      "edit_duration": 3.403,
      "edit_duration_all": 7.989,
      "is_forceout": false
    },
    {
      "message_id": 666,
      "editor_id": 13,
      "message_received": "ถ้ามองด้วยตา",
      "slice_count": 2,
      "slices": " |ถ้ามองด้วยตา|",
      "edit_duration": 6.477,
      "edit_duration_all": 6.93,
      "is_forceout": false
    },
    {
      "message_id": 667,
      "editor_id": 13,
      "message_received": "258",
      "slice_count": 2,
      "slices": " |2 5 8|",
      "edit_duration": 5.057,
      "edit_duration_all": 6.825,
      "is_forceout": false
    },
    {
      "message_id": 668,
      "editor_id": 13,
      "message_received": "25",
      "slice_count": 3,
      "slices": " |2 |5|",
      "edit_duration": 4.464,
      "edit_duration_all": 6.217,
      "is_forceout": false
    },
    {
      "message_id": 669,
      "editor_id": 13,
      "message_received": "แปะ",
      "slice_count": 2,
      "slices": " 8 ||",
      "edit_duration": 5.225,
      "edit_duration_all": 9.385,
      "is_forceout": false
    },
    {
      "message_id": 670,
      "editor_id": 13,
      "message_received": "ถ้าดีมีค่าเท่าไหร่คะ",
      "slice_count": 2,
      "slices": "ค่า d |มีค่าเท่าไรคะ|",
      "edit_duration": 4.605,
      "edit_duration_all": 7.013,
      "is_forceout": false
    },
    {
      "message_id": 671,
      "editor_id": 13,
      "message_received": "ไอ้นึกได้",
      "slice_count": 2,
      "slices": " |ใครนึกได้|",
      "edit_duration": 5.334,
      "edit_duration_all": 8.046,
      "is_forceout": false
    },
    {
      "message_id": 672,
      "editor_id": 13,
      "message_received": "ถูกต้อง",
      "slice_count": 2,
      "slices": " |ถูกต้อง|",
      "edit_duration": 5.368,
      "edit_duration_all": 5.951,
      "is_forceout": false
    },
    {
      "message_id": 673,
      "editor_id": 13,
      "message_received": "ใช่ไหม",
      "slice_count": 1,
      "slices": " ใช่ไหม|",
      "edit_duration": 5.716,
      "edit_duration_all": 5.716,
      "is_forceout": false
    },
    {
      "message_id": 674,
      "editor_id": 13,
      "message_received": "ที่ดีๆ",
      "slice_count": 2,
      "slices": " |คิดดี ๆ |",
      "edit_duration": 4.346,
      "edit_duration_all": 11.517,
      "is_forceout": false
    },
    {
      "message_id": 675,
      "editor_id": 13,
      "message_received": "258 ฮ่าๆๆ",
      "slice_count": 2,
      "slices": "2 5 8 ||",
      "edit_duration": 6.349,
      "edit_duration_all": 9.43,
      "is_forceout": false
    },
    {
      "message_id": 676,
      "editor_id": 13,
      "message_received": "แปะ",
      "slice_count": 2,
      "slices": "2 5 8 ||",
      "edit_duration": 4.887,
      "edit_duration_all": 8.326,
      "is_forceout": false
    },
    {
      "message_id": 677,
      "editor_id": 13,
      "message_received": "คดีคดี",
      "slice_count": 4,
      "slices": "เท่าไรคะ |ค่า d ค่า d| ||",
      "edit_duration": 5.404,
      "edit_duration_all": 11.523,
      "is_forceout": false
    },
    {
      "message_id": 678,
      "editor_id": 13,
      "message_received": "อย่าลืมราคาดีคือเรานำตัวเลขที่อยู่ใกล้กันนะลูก",
      "slice_count": 2,
      "slices": "อย่าลืม ค่า d |คือเรานำตัวเลขที่อยู่ใกล้กันนะลูก |",
      "edit_duration": 7.463,
      "edit_duration_all": 8.966,
      "is_forceout": false
    },
    {
      "message_id": 679,
      "editor_id": 33,
      "message_received": "อยู่ใกล้กัน",
      "slice_count": 1,
      "slices": "อยู่ใกล้กัน|",
      "edit_duration": 5.267,
      "edit_duration_all": 5.267,
      "is_forceout": false
    },
    {
      "message_id": 680,
      "editor_id": 33,
      "message_received": "ตัวหน้า",
      "slice_count": 2,
      "slices": " |เอาตัวหลังลบตัวหน้า|",
      "edit_duration": 3.458,
      "edit_duration_all": 9.442,
      "is_forceout": false
    },
    {
      "message_id": 681,
      "editor_id": 33,
      "message_received": "5 กับ 8",
      "slice_count": 3,
      "slices": " |เพราะฉะนั้น |5 กับ 8|",
      "edit_duration": 6.572,
      "edit_duration_all": 16.015,
      "is_forceout": true
    },
    {
      "message_id": 682,
      "editor_id": 33,
      "message_received": "คู่ไหนล่ะ",
      "slice_count": 1,
      "slices": "คู่ ไหนล่ะ|",
      "edit_duration": 14.058,
      "edit_duration_all": 14.058,
      "is_forceout": false
    },
    {
      "message_id": 683,
      "editor_id": 33,
      "message_received": "กู 5 นี้ใช่ไหม",
      "slice_count": 2,
      "slices": " |คู่ 5 นี้ใช่ไหม|",
      "edit_duration": 12.763,
      "edit_duration_all": 16.016,
      "is_forceout": true
    },
    {
      "message_id": 684,
      "editor_id": 33,
      "message_received": "คดีมีค่าเท่ากับ 3 ถูกต้องค่ะ",
      "slice_count": 1,
      "slices": " ค่า d มีค่าเท่ากับ 3 ถูกต้องค่ะ |",
      "edit_duration": 14.89,
      "edit_duration_all": 14.89,
      "is_forceout": false
    },
    {
      "message_id": 685,
      "editor_id": 33,
      "message_received": "พอเราได้ค่าดีแล้วนะคะมีค่าเท่ากับ 3 เราก็มาหา",
      "slice_count": 2,
      "slices": "พอเราได้ ค่า d แล้วนะคะ| มีค่าเท่ากับ 3 เราก็มาหา|",
      "edit_duration": 12.904,
      "edit_duration_all": 16.02,
      "is_forceout": true
    },
    {
      "message_id": 686,
      "editor_id": 33,
      "message_received": "ถ้าพจน์ที่โจทย์กำหนดถูกไหมคะ",
      "slice_count": 3,
      "slices": "ค่าพจน์ |ที่โจทย์กำหนดถูกไหมคะ| |",
      "edit_duration": 14.324,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 687,
      "editor_id": 33,
      "message_received": "ทั้ง 5 พจน์ที่โจทย์กำหนด",
      "slice_count": 1,
      "slices": "ทั้ง 5 พจน์ที่โจทย์กำหนด |",
      "edit_duration": 14.072,
      "edit_duration_all": 14.072,
      "is_forceout": false
    },
    {
      "message_id": 688,
      "editor_id": 13,
      "message_received": "แล้วก็หาคำตอบ",
      "slice_count": 1,
      "slices": "แล้วก็หาคำตอบ|",
      "edit_duration": 5.849,
      "edit_duration_all": 5.849,
      "is_forceout": false
    },
    {
      "message_id": 689,
      "editor_id": 13,
      "message_received": "ของอนุกรมออกมา",
      "slice_count": 1,
      "slices": "ของอนุกรมออกมา |",
      "edit_duration": 4.519,
      "edit_duration_all": 4.519,
      "is_forceout": false
    },
    {
      "message_id": 690,
      "editor_id": 13,
      "message_received": "ดีไหมคะดูโจทย์ข้อนี้บนกระดานค่ะ",
      "slice_count": 3,
      "slices": "โอเคไหมคะ| ดูโจทย์ข้อนี้ |บนกระดานค่ะ |",
      "edit_duration": 3.87,
      "edit_duration_all": 5.452,
      "is_forceout": false
    },
    {
      "message_id": 691,
      "editor_id": 13,
      "message_received": "โจทย์คณิตบนกระดานใครหาคำตอบให้คุณจะได้บ้าง",
      "slice_count": 3,
      "slices": "ดูโจทย์ข้อนี้|บนกระดาน |ใครหาคำตอบให้ครูเจนได้บ้าง|",
      "edit_duration": 6.318,
      "edit_duration_all": 10.446,
      "is_forceout": false
    },
    {
      "message_id": 692,
      "editor_id": 13,
      "message_received": "มีคะแนนให้นะคะ",
      "slice_count": 3,
      "slices": " |มีคะแนนให้นะคะ| |",
      "edit_duration": 6.632,
      "edit_duration_all": 8.135,
      "is_forceout": false
    },
    {
      "message_id": 693,
      "editor_id": 13,
      "message_received": "มีคะแนนให้เลยนะ",
      "slice_count": 1,
      "slices": "มีคะแนนให้เลยนะ|",
      "edit_duration": 6.644,
      "edit_duration_all": 6.644,
      "is_forceout": false
    },
    {
      "message_id": 694,
      "editor_id": 13,
      "message_received": "ข้อละ 10 คะแนนไปเลย",
      "slice_count": 3,
      "slices": " |ข้อละ 10 คะแนน |ไปเลย|",
      "edit_duration": 4.342,
      "edit_duration_all": 5.965,
      "is_forceout": false
    },
    {
      "message_id": 695,
      "editor_id": 13,
      "message_received": "ข้อละ 10 คะแนน",
      "slice_count": 2,
      "slices": " |ข้อละ 10 คะแนน |",
      "edit_duration": 3.332,
      "edit_duration_all": 3.843,
      "is_forceout": false
    },
    {
      "message_id": 696,
      "editor_id": 33,
      "message_received": "เข้าใจไหมคะ",
      "slice_count": 1,
      "slices": "เข้าใจไหมคะ |",
      "edit_duration": 6.265,
      "edit_duration_all": 6.265,
      "is_forceout": false
    },
    {
      "message_id": 697,
      "editor_id": 33,
      "message_received": "ใจออกมาไม่จอย",
      "slice_count": 1,
      "slices": "จ่อยออกมาไหมจ่อย|",
      "edit_duration": 12.094,
      "edit_duration_all": 12.094,
      "is_forceout": false
    },
    {
      "message_id": 698,
      "editor_id": 33,
      "message_received": "มาทำให้ดูหน่อย",
      "slice_count": 2,
      "slices": " |มา ออกมาทำให้ดูหน่อย |",
      "edit_duration": 4.738,
      "edit_duration_all": 11.009,
      "is_forceout": false
    },
    {
      "message_id": 699,
      "editor_id": 33,
      "message_received": "แล้วมาดูกันนะคะว่า",
      "slice_count": 2,
      "slices": " เรามาดูกันนะคะ |ว่า|",
      "edit_duration": 7.349,
      "edit_duration_all": 9.314,
      "is_forceout": false
    },
    {
      "message_id": 700,
      "editor_id": 33,
      "message_received": "เพื่อนออกมาทำโจทย์บนกระดานลูกๆก็ทำในสมุด",
      "slice_count": 2,
      "slices": "เพื่อนออกมาทำโจทย์บนกระดาน |ลูก ๆ ก็ทำในสมุด|",
      "edit_duration": 3.807,
      "edit_duration_all": 5.095,
      "is_forceout": false
    },
    {
      "message_id": 701,
      "editor_id": 33,
      "message_received": "ทำในสมุดด้วย",
      "slice_count": 2,
      "slices": " |ทำในสมุดด้วย |",
      "edit_duration": 1.724,
      "edit_duration_all": 3.172,
      "is_forceout": false
    },
    {
      "message_id": 702,
      "editor_id": 33,
      "message_received": "เรามาดูคำตอบเรากับเพื่อนจะตรงกันไหม",
      "slice_count": 1,
      "slices": " เรามาดูคำตอบเรากับเพื่อนจะตรงกันไหม|",
      "edit_duration": 6.166,
      "edit_duration_all": 6.166,
      "is_forceout": false
    },
    {
      "message_id": 703,
      "editor_id": 33,
      "message_received": "ไม่",
      "slice_count": 2,
      "slices": " |ไม่|",
      "edit_duration": 3.478,
      "edit_duration_all": 4.195,
      "is_forceout": false
    },
    {
      "message_id": 704,
      "editor_id": 33,
      "message_received": "ตกลงสินค้าตัวเดียวกัน",
      "slice_count": 2,
      "slices": " |ต้องตรงสิคะ โจทย์เดียวกัน|",
      "edit_duration": 1.85,
      "edit_duration_all": 16.014,
      "is_forceout": true
    },
    {
      "message_id": 705,
      "editor_id": 13,
      "message_received": "ตัวเดียวกันตั้งกล้อง",
      "slice_count": 1,
      "slices": "โ|",
      "edit_duration": 11.61,
      "edit_duration_all": 11.61,
      "is_forceout": false
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    {
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      "editor_id": 13,
      "message_received": "อย่าลืมนะคะการหาค่า D",
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      "slices": "จทย์เดียวกันต้องตรง |อย่าลืมนะคะ การหาค่า d|",
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      "message_id": 707,
      "editor_id": 13,
      "message_received": "ปัญหาคดี",
      "slice_count": 1,
      "slices": "ก|",
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      "is_forceout": false
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      "message_id": 708,
      "editor_id": 13,
      "message_received": "แค่จับคู่",
      "slice_count": 2,
      "slices": "ารหาร ค่า d |แค่จับคู่|",
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      "message_id": 709,
      "editor_id": 13,
      "message_received": "ลำดับที่อยู่ใกล้กันมา",
      "slice_count": 1,
      "slices": "ลำดับที่อยู่ใกล้กันมา|",
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      "is_forceout": false
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      "message_id": 710,
      "editor_id": 13,
      "message_received": "นะจับคู่ลำดับที่อยู่ใกล้กันมา 1 คู่ใช่ไหมคะ",
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      "is_forceout": false
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      "message_id": 711,
      "editor_id": 13,
      "message_received": "นำ",
      "slice_count": 1,
      "slices": "นำ|",
      "edit_duration": 4.833,
      "edit_duration_all": 4.833,
      "is_forceout": false
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      "message_id": 712,
      "editor_id": 13,
      "message_received": "ตัวเลขที่อยู่ข้างหลังตัวเลขที่ทํานาย",
      "slice_count": 2,
      "slices": "ตัวเลข|ที่อยู่ข้างหลังลบตัวเลขที่อยู่ข้างหน้า |",
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      "is_forceout": false
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      "message_id": 713,
      "editor_id": 33,
      "message_received": "มันคือการหาค่า D",
      "slice_count": 1,
      "slices": "มันคือการหาค่า |",
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      "edit_duration_all": 6.11,
      "is_forceout": false
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      "message_id": 714,
      "editor_id": 33,
      "message_received": "หนา",
      "slice_count": 2,
      "slices": "d |นะ |",
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      "edit_duration_all": 6.381,
      "is_forceout": false
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      "message_id": 715,
      "editor_id": 33,
      "message_received": "จากนั้นเราก็หาผลบวก",
      "slice_count": 1,
      "slices": "จากนั้น เราก็หาผลบวก|",
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      "edit_duration_all": 5.628,
      "is_forceout": false
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    {
      "message_id": 716,
      "editor_id": 33,
      "message_received": "ของโพสต์ตามที่โจทย์กำหนดให้เลย",
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      "slices": " |ของพจน์ตามที่โจทย์กำหนดให้เลย |",
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      "is_forceout": false
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      "message_id": 717,
      "editor_id": 33,
      "message_received": "น้าจากลำดับ 2558 นะคะเพื่อนหาค่าได้คือสาร",
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      "slices": "นะ |จากลำดับ 2 5 8 นะคะ  |เพื่อนหาค่าได้คือ|",
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      "edit_duration_all": 13.441,
      "is_forceout": false
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    {
      "message_id": 718,
      "editor_id": 33,
      "message_received": "งั้นจาก 258",
      "slice_count": 2,
      "slices": " |อย่างนั้นนจาก 2 5 8|",
      "edit_duration": 11.13,
      "edit_duration_all": 13.587,
      "is_forceout": false
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    {
      "message_id": 719,
      "editor_id": 33,
      "message_received": "ต่อไปก็คือ",
      "slice_count": 2,
      "slices": " |ต่อไป ก็คือ|",
      "edit_duration": 12.42,
      "edit_duration_all": 16.023,
      "is_forceout": true
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    {
      "message_id": 720,
      "editor_id": 33,
      "message_received": "11",
      "slice_count": 1,
      "slices": " 11|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 721,
      "editor_id": 33,
      "message_received": "สี",
      "slice_count": 1,
      "slices": " |",
      "edit_duration": 16.013,
      "edit_duration_all": 16.013,
      "is_forceout": true
    },
    {
      "message_id": 722,
      "editor_id": 33,
      "message_received": "สภาพรถหรือยัง",
      "slice_count": 1,
      "slices": "สภาพพจน์หรือยัง|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 723,
      "editor_id": 33,
      "message_received": "ถ้าพจน์แล้วจากนั้นเราก็หาค่าของอนุกรมได้เลยค่ะโดยนำแต่ละคนมาทำอะไรกันคะ",
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      "edit_duration_all": 16.013,
      "is_forceout": true
    },
    {
      "message_id": 724,
      "editor_id": 13,
      "message_received": "บวกกัน",
      "slice_count": 1,
      "slices": "บวกกัน |",
      "edit_duration": 4.103,
      "edit_duration_all": 4.103,
      "is_forceout": false
    },
    {
      "message_id": 725,
      "editor_id": 13,
      "message_received": "นำแต่ละพจน์มาบวกกัน",
      "slice_count": 1,
      "slices": "นำแต่ละพจน์มาบวกกัน |",
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      "edit_duration_all": 3.095,
      "is_forceout": false
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    {
      "message_id": 726,
      "editor_id": 13,
      "message_received": "2 + 5 + 8 + 11",
      "slice_count": 3,
      "slices": "2 + 5 |+ 8 |+ 11|",
      "edit_duration": 1.795,
      "edit_duration_all": 3.585,
      "is_forceout": false
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    {
      "message_id": 727,
      "editor_id": 13,
      "message_received": "และ + 14",
      "slice_count": 3,
      "slices": " |และ |+ 14 |",
      "edit_duration": 1.922,
      "edit_duration_all": 3.516,
      "is_forceout": false
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      "message_id": 728,
      "editor_id": 13,
      "message_received": "2 + 5 เท่าไหร่คะ 2",
      "slice_count": 3,
      "slices": "2 + 5 |เท่าไรคะ |2|",
      "edit_duration": 2.21,
      "edit_duration_all": 4.929,
      "is_forceout": false
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      "message_id": 729,
      "editor_id": 13,
      "message_received": "+",
      "slice_count": 2,
      "slices": " |+ |",
      "edit_duration": 3.809,
      "edit_duration_all": 5.177,
      "is_forceout": false
    },
    {
      "message_id": 730,
      "editor_id": 13,
      "message_received": "เจ็บไหมคะ",
      "slice_count": 3,
      "slices": "5 |7 |ถูกไหมคะ |",
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      "edit_duration_all": 5.989,
      "is_forceout": false
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    {
      "message_id": 731,
      "editor_id": 13,
      "message_received": "Spy",
      "slice_count": 2,
      "slices": "ต่อไป ||",
      "edit_duration": 9.399,
      "edit_duration_all": 12.847,
      "is_forceout": false
    },
    {
      "message_id": 732,
      "editor_id": 13,
      "message_received": "7",
      "slice_count": 1,
      "slices": "7|",
      "edit_duration": 11.194,
      "edit_duration_all": 11.194,
      "is_forceout": false
    },
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      "message_id": 733,
      "editor_id": 13,
      "message_received": "+",
      "slice_count": 1,
      "slices": " +|",
      "edit_duration": 9.911,
      "edit_duration_all": 9.911,
      "is_forceout": false
    },
    {
      "message_id": 734,
      "editor_id": 13,
      "message_received": "8",
      "slice_count": 1,
      "slices": " 8|",
      "edit_duration": 8.253,
      "edit_duration_all": 8.253,
      "is_forceout": false
    },
    {
      "message_id": 735,
      "editor_id": 13,
      "message_received": "ถูกต้องค่ะ 10-15 ใช้ค่ะ",
      "slice_count": 4,
      "slices": " |ถูกต้องค่ะ |เท่าไรคะ |15 ใช่ค่ะ |",
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      "is_forceout": false
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    {
      "message_id": 736,
      "editor_id": 13,
      "message_received": "ป้าย",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 11.193,
      "edit_duration_all": 11.193,
      "is_forceout": false
    },
    {
      "message_id": 737,
      "editor_id": 13,
      "message_received": "15 + 11 -",
      "slice_count": 2,
      "slices": "ต่อไป |15 + 11 |",
      "edit_duration": 8.954,
      "edit_duration_all": 13.468,
      "is_forceout": false
    },
    {
      "message_id": 738,
      "editor_id": 13,
      "message_received": "15 +",
      "slice_count": 2,
      "slices": "ค่ะลูก |15 +|",
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      "edit_duration_all": 11.347,
      "is_forceout": false
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      "message_id": 739,
      "editor_id": 13,
      "message_received": "11",
      "slice_count": 1,
      "slices": "11|",
      "edit_duration": 9.692,
      "edit_duration_all": 9.692,
      "is_forceout": false
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      "message_id": 740,
      "editor_id": 13,
      "message_received": "15 +",
      "slice_count": 3,
      "slices": " |เท่าไรคะ |15 +|",
      "edit_duration": 4.282,
      "edit_duration_all": 7.785,
      "is_forceout": false
    },
    {
      "message_id": 741,
      "editor_id": 13,
      "message_received": "11",
      "slice_count": 1,
      "slices": "11|",
      "edit_duration": 5.315,
      "edit_duration_all": 5.315,
      "is_forceout": false
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    {
      "message_id": 742,
      "editor_id": 13,
      "message_received": "อะไรนะ",
      "slice_count": 3,
      "slices": " |เท่าไรคะ| |",
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      "edit_duration_all": 10.404,
      "is_forceout": false
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    {
      "message_id": 743,
      "editor_id": 13,
      "message_received": "20 เท่าไหร่",
      "slice_count": 1,
      "slices": "20 เท่าไร|",
      "edit_duration": 5.986,
      "edit_duration_all": 5.986,
      "is_forceout": false
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    {
      "message_id": 744,
      "editor_id": 13,
      "message_received": "25 ใหญ่",
      "slice_count": 2,
      "slices": " |20 เท่าไรเอ่ย |",
      "edit_duration": 2.093,
      "edit_duration_all": 7.982,
      "is_forceout": false
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      "message_id": 745,
      "editor_id": 33,
      "message_received": "15",
      "slice_count": 1,
      "slices": "15|",
      "edit_duration": 8.127,
      "edit_duration_all": 8.127,
      "is_forceout": false
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    {
      "message_id": 746,
      "editor_id": 33,
      "message_received": "+",
      "slice_count": 1,
      "slices": " + |",
      "edit_duration": 7.089,
      "edit_duration_all": 7.089,
      "is_forceout": false
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      "message_id": 747,
      "editor_id": 33,
      "message_received": "11 จะไปแข่งบวกบวกเลขเร็วนะเนี่ย",
      "slice_count": 2,
      "slices": "11 |จะไปแข่งบวกเลขเร็วนะนี่|",
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      "edit_duration_all": 9.74,
      "is_forceout": false
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    {
      "message_id": 748,
      "editor_id": 33,
      "message_received": "5 + 11",
      "slice_count": 2,
      "slices": " |5 + 11|",
      "edit_duration": 8.301,
      "edit_duration_all": 9.21,
      "is_forceout": false
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    {
      "message_id": 749,
      "editor_id": 33,
      "message_received": "เมื่อไหร่",
      "slice_count": 2,
      "slices": " |เท่าไร|",
      "edit_duration": 7.991,
      "edit_duration_all": 11.359,
      "is_forceout": false
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    {
      "message_id": 750,
      "editor_id": 33,
      "message_received": "15 + 11",
      "slice_count": 2,
      "slices": " |15 + 11|",
      "edit_duration": 4.124,
      "edit_duration_all": 5.382,
      "is_forceout": false
    },
    {
      "message_id": 751,
      "editor_id": 33,
      "message_received": "20 เท่าไหร่",
      "slice_count": 2,
      "slices": " |20 เท่าไร|",
      "edit_duration": 3.792,
      "edit_duration_all": 7.544,
      "is_forceout": false
    },
    {
      "message_id": 752,
      "editor_id": 33,
      "message_received": "26 26 + 14",
      "slice_count": 3,
      "slices": " |26 |26 + 14|",
      "edit_duration": 3.744,
      "edit_duration_all": 5.991,
      "is_forceout": false
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    {
      "message_id": 753,
      "editor_id": 33,
      "message_received": "26",
      "slice_count": 2,
      "slices": " |26|",
      "edit_duration": 2.415,
      "edit_duration_all": 8.416,
      "is_forceout": false
    },
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      "message_id": 754,
      "editor_id": 33,
      "message_received": "+",
      "slice_count": 1,
      "slices": " +|",
      "edit_duration": 7.094,
      "edit_duration_all": 7.094,
      "is_forceout": false
    },
    {
      "message_id": 755,
      "editor_id": 33,
      "message_received": "10",
      "slice_count": 1,
      "slices": " 1|",
      "edit_duration": 6.073,
      "edit_duration_all": 6.073,
      "is_forceout": false
    },
    {
      "message_id": 756,
      "editor_id": 33,
      "message_received": "4",
      "slice_count": 1,
      "slices": "4 |",
      "edit_duration": 5.212,
      "edit_duration_all": 5.212,
      "is_forceout": false
    },
    {
      "message_id": 757,
      "editor_id": 33,
      "message_received": "26 + 14",
      "slice_count": 1,
      "slices": " เท่าไรคะ 26 + 14|",
      "edit_duration": 7.249,
      "edit_duration_all": 7.249,
      "is_forceout": false
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    {
      "message_id": 758,
      "editor_id": 33,
      "message_received": "คิดๆๆ",
      "slice_count": 2,
      "slices": " |คิด ๆ ๆ |",
      "edit_duration": 4.769,
      "edit_duration_all": 9.079,
      "is_forceout": false
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      "message_id": 759,
      "editor_id": 33,
      "message_received": "นี่",
      "slice_count": 2,
      "slices": "เร็ว ๆ ||",
      "edit_duration": 4.438,
      "edit_duration_all": 6.699,
      "is_forceout": false
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      "message_id": 760,
      "editor_id": 33,
      "message_received": "40 ถูกไหมคะถูกต้องเพื่อนหน่อยค่ะ",
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      "slices": " 40 ถูกไหมคะ |ถูกต้องค่ะ 40 ปรบมือให้เพื่อนหน่อยค่ะ |",
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      "edit_duration_all": 11.114,
      "is_forceout": false
    },
    {
      "message_id": 761,
      "editor_id": 33,
      "message_received": "โอเคนะคะจากตรงนี้นะคะ",
      "slice_count": 3,
      "slices": " ปรบมือให้เพื่อนหน่อย |โอเคนะคะ |จากตรงนี้นะคะ  |",
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      "edit_duration_all": 14.919,
      "is_forceout": false
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    {
      "message_id": 762,
      "editor_id": 13,
      "message_received": "คุณเจนเห็นแล้วว่า",
      "slice_count": 2,
      "slices": "ครูเจน|เห็นแล้วว่า|",
      "edit_duration": 4.825,
      "edit_duration_all": 9.659,
      "is_forceout": false
    },
    {
      "message_id": 763,
      "editor_id": 13,
      "message_received": "ส่วนใหญ่เข้าใจ",
      "slice_count": 1,
      "slices": "จริง ๆ ส่วนใหญ่เข้าใจ|",
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      "edit_duration_all": 7.645,
      "is_forceout": false
    },
    {
      "message_id": 764,
      "editor_id": 13,
      "message_received": "เข้าใจวิธีหาเนาะวิธีหาอนุกรมโดยการหาค่าดีจึงนี้นะคะ",
      "slice_count": 4,
      "slices": " |เข้าใจวิธีหานะ |วิธีหาอนุกรมโดยการหา ค่า d |ตรงนี้นะคะ |",
      "edit_duration": 1.449,
      "edit_duration_all": 11.136,
      "is_forceout": false
    },
    {
      "message_id": 765,
      "editor_id": 13,
      "message_received": "อาจจะต้องไปฝึกฝนในเรื่องการบวกเลข",
      "slice_count": 1,
      "slices": "อาจจะต้องไปฝึกฝนในเรื่องการบวกเลข|",
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      "edit_duration_all": 9.635,
      "is_forceout": false
    },
    {
      "message_id": 766,
      "editor_id": 13,
      "message_received": "อยู่ไหน",
      "slice_count": 1,
      "slices": " ด|",
      "edit_duration": 15.266,
      "edit_duration_all": 15.266,
      "is_forceout": false
    },
    {
      "message_id": 767,
      "editor_id": 13,
      "message_received": "ดูนะ",
      "slice_count": 1,
      "slices": "ูนะ ดูนะ|",
      "edit_duration": 14.306,
      "edit_duration_all": 14.306,
      "is_forceout": false
    },
    {
      "message_id": 768,
      "editor_id": 13,
      "message_received": "ทุกคนนะฮะเกือบทุกคนเลยต้องไปฝึกฝนเรื่องการบวกเลข",
      "slice_count": 2,
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      "edit_duration": 9.598,
      "edit_duration_all": 11.299,
      "is_forceout": false
    },
    {
      "message_id": 769,
      "editor_id": 33,
      "message_received": "เรื่องการบวกเลข",
      "slice_count": 1,
      "slices": "เรื่องการบวกเลข|",
      "edit_duration": 7.012,
      "edit_duration_all": 7.012,
      "is_forceout": false
    },
    {
      "message_id": 770,
      "editor_id": 33,
      "message_received": "ไม่ต้องบวกให้",
      "slice_count": 2,
      "slices": " |เราต้องบวกให้|",
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