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      "message_received": "ของเซต B ค่ะ",
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      "message_received": "นะคะ Set a ค่ะ",
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      "message_received": "ก็ตามด้วยเช็ดดีค่ะ",
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      "message_received": "จากตัวอย่าง",
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      "message_received": "เมื่อสักครู่",
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      "message_received": "นี้นะคะนักเรียนจะเห็นว่า",
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      "message_received": "ถ้า",
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      "message_received": "เราพิจารณา",
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      "message_received": "ตามบทนิยาม",
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      "message_received": "ทุกตัวของเซต",
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      "message_received": " a นะคะ",
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      "message_received": "และ",
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      "message_received": "จากตัวอย่าง",
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      "message_received": "เมื่อสักครู่",
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      "message_received": "ของเซต B ค่ะ",
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      "message_received": "ของเซต a นะ",
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      "message_received": "คะ",
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      "message_received": "ของเซต B ค่ะ",
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      "message_received": "ดัง",
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      "message_received": "นั้นนะคะเราจึง",
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      "message_received": "กล่าวได้ว่า",
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      "message_received": " Set a นะคะ",
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      "message_received": "เดี๋ยว",
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      "message_received": "เราไปพิจารณา",
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      "message_received": "อีก 1 ตัว",
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      "message_received": "อย่างเพื่อ",
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      "message_received": "ความเข้าใจ",
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      "message_received": "กันดีกว่านะคะ",
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      "message_received": "Set C นะคะประกอบ",
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      "message_received": "ด้วยสมาชิก",
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      "message_received": "คือ x และ Y ค่ะ",
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      "message_received": "ดีนะคะประกอบ",
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      "message_received": "ไปด้วยสมาชิก",
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      "message_received": "และไวน์ค่ะ",
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      "message_received": "ณเดชจะสังเกต",
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      "message_received": "เห็นว่านะ",
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      "message_received": "คะ W นะคะ",
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      "message_received": "ของเซตดีนะคะ",
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      "message_received": "W ค่ะ",
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      "message_received": "ไม่",
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      "message_received": "ใช่สมาชิก",
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      "message_received": "ของเซต C ค่ะ",
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      "message_received": "ดังนั้นนะคะ",
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      "message_received": "เราจะกล่าวได้ว่า",
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      "message_received": "เซ็กซี่นะคะ",
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      "message_received": "ไม่เท่ากับเซต B ค่ะ",
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      "message_received": "เดี๋ยวเรา",
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      "message_received": "ไปดูตัวอย่าง",
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      "message_received": "ถัดไปกันเลยดีกว่านะคะ",
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      "message_received": "ให้",
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      "message_received": "เซ็นต์เอกสารประกอบ",
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      "message_received": "ไปด้วยสมา",
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      "message_received": "ชิกนะคะ",
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      "message_received": "โดยที่ x เป็น",
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      "message_received": "จำนวนคู่ค่ะ",
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      "message_received": "hbd",
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      "message_received": " นะคะประกอบ",
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      "message_received": "ไปด้วย",
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      "message_received": "สมาชิกค่ะ",
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      "message_received": " เป็นจำนวนคี่บวกค่ะ",
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      "message_received": "และ",
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      "message_received": "เซ็กซี่นะ",
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      "message_received": "ครับประกอบ",
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      "message_received": "ด้วยสมาชิก",
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      "message_received": "คือ 1",
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      "message_received": "357",
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      "message_received": " ไปเรื่อยๆค่ะ",
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      "message_received": "จง",
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      "message_received": "พิจารณานะคะว่า",
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      "message_received": "เซตคู่ใด",
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      "message_received": "บ้างเท่ากันนะคะ",
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      "message_received": "และเซตคู่",
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      "message_received": "ใดบ้างไม่เท่ากันค่ะ",
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      "message_received": "ก่อน",
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      "message_received": "อื่นที่เราจะ",
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      "message_received": "ทำการพิจารณา",
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      "message_received": "นะคะแล้วจะสังเกต",
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      "message_received": " b นะ",
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      "message_received": "คะเขียน",
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      "message_received": "เส้นในรูปแบบ",
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      "message_received": "บอกเงื่อนไขนะคะ",
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      "message_received": "งั้นเดี๋ยว",
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      "message_received": "จะทำการเขียน",
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      "message_received": "เซต a และ b",
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      "message_received": " แบบแจกแจงสมาชิกค่ะ",
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      "message_id": 340,
      "editor_id": 43,
      "message_received": "เรา",
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      "message_received": "มาเริ่มต้น",
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      "message_received": "ที่เส้นเอ็นก่อนนะคะ",
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      "message_received": "จะสังเกต",
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      "message_received": "เห็นว่า Set a นะ",
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      "message_received": "คะเป็นเซต",
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      "message_received": "เพราะฉะนั้นแล้วนะคะ",
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      "message_received": "ก็จะเขียน",
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      "message_id": 378,
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      "message_received": " 13",
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      "message_received": "57 แล้ว",
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      "message_received": "ก็ตามด้วยจุด 3 จุดค่ะ",
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      "message_received": "เดี๋ยว",
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      "message_received": "เรามาทำการ",
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      "message_received": " a และ b ค่ะ",
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      "message_received": "ในเซต a นะคะ",
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      "message_received": "ตัวอย่างเช่นศูนย์ค่ะ",
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      "message_received": "โซน C ค่ะ",
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      "message_received": "ตัวอย่าง",
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      "message_received": " 13",
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      "message_received": "ของเซต a ค่ะ",
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      "message_received": "ดัง",
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      "message_received": "นั้นนะคะเราจะ",
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      "message_received": " a นะคะ",
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      "message_received": "ชิกคือ a b และ c",
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      "editor_id": 43,
      "message_received": " นะคะ",
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      "message_received": "สวัสดีนะคะประกอบ",
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      "message_received": "ด้วยสมาชิกคือ a b c และ D ค่ะ",
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      "message_id": 560,
      "editor_id": 33,
      "message_received": "เดี๋ยว",
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      "editor_id": 33,
      "message_received": "เราไปทำการ",
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      "message_id": 562,
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      "message_received": "พิจารณาสมาชิก",
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      "message_received": "ปีละตัวนะ",
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      "message_id": 564,
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      "message_received": "เริ่มต้นที่ a ค่ะ",
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      "message_id": 565,
      "editor_id": 33,
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      "message_received": "เอนะคะ",
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      "message_received": "ของเซต a ค่ะ",
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      "message_id": 569,
      "editor_id": 33,
      "message_received": "และ",
      "slice_count": 1,
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      "message_id": 570,
      "editor_id": 33,
      "message_received": "ok นะคะก็",
      "slice_count": 1,
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      "message_received": "เป็นสมาชิก",
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      "message_received": "ของเซต B ค่ะ",
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      "slices": "ของเซต B ค่ะ |",
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      "message_id": 573,
      "editor_id": 43,
      "message_received": "ดี",
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      "editor_id": 43,
      "message_received": "ค่ะเป็นสมาชิก",
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    {
      "message_id": 575,
      "editor_id": 43,
      "message_received": "ของเซต a นะคะ",
      "slice_count": 1,
      "slices": "ของเซต A นะคะ|",
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      "message_id": 576,
      "editor_id": 43,
      "message_received": "และ",
      "slice_count": 1,
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      "message_id": 577,
      "editor_id": 43,
      "message_received": "บีก็เป็น",
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      "message_id": 578,
      "editor_id": 43,
      "message_received": "สมาชิกของ",
      "slice_count": 1,
      "slices": "สมาชิกของ|",
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      "message_id": 579,
      "editor_id": 43,
      "message_received": "เซต B ค่ะ",
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      "message_id": 580,
      "editor_id": 43,
      "message_received": "ฉัน",
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      "message_id": 581,
      "editor_id": 43,
      "message_received": "มาที่ 4 นะ",
      "slice_count": 1,
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      "message_id": 582,
      "editor_id": 43,
      "message_received": "คะ",
      "slice_count": 1,
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      "editor_id": 43,
      "message_received": " 4 เป็นสมาชิก",
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      "message_id": 584,
      "editor_id": 43,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ|",
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      "message_id": 585,
      "editor_id": 43,
      "message_received": "แต่",
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      "message_id": 586,
      "editor_id": 43,
      "message_received": "สีนะคะ",
      "slice_count": 1,
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      "editor_id": 43,
      "message_received": "ไม่ได้เป็นสมาชิก",
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      "message_id": 588,
      "editor_id": 43,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
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      "editor_id": 43,
      "message_received": "เรามาดูที่ดีนะคะ",
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      "message_id": 590,
      "editor_id": 33,
      "message_received": "ดี",
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      "message_id": 591,
      "editor_id": 33,
      "message_received": "นะคะไม่เป็น",
      "slice_count": 1,
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      "editor_id": 33,
      "message_received": "สมาชิกของเซต",
      "slice_count": 1,
      "slices": "สมาชิกของเซต|",
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      "message_id": 593,
      "editor_id": 33,
      "message_received": " a ค่ะ",
      "slice_count": 1,
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      "message_id": 594,
      "editor_id": 33,
      "message_received": "แต่ดีนะ",
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      "message_id": 595,
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      "message_received": "คะเป็นสมาชิก",
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      "message_id": 596,
      "editor_id": 33,
      "message_received": "ของบีค่ะ",
      "slice_count": 1,
      "slices": "ของ B ค่ะ|",
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      "message_id": 597,
      "editor_id": 33,
      "message_received": "เรา",
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      "message_id": 598,
      "editor_id": 33,
      "message_received": "จะเห็นว่านะคะ",
      "slice_count": 1,
      "slices": "จะเห็นว่านะคะ|",
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      "message_id": 599,
      "editor_id": 33,
      "message_received": "มีสมา",
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      "message_id": 600,
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      "message_received": "ชิกบางตัว",
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      "message_id": 601,
      "editor_id": 33,
      "message_received": "นะคะที่อยู่",
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      "message_id": 602,
      "editor_id": 33,
      "message_received": "ใน Set a ค่ะ",
      "slice_count": 1,
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      "message_id": 603,
      "editor_id": 33,
      "message_received": "แต่ไม่",
      "slice_count": 1,
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      "message_id": 604,
      "editor_id": 33,
      "message_received": "ในเซต B นะคะ",
      "slice_count": 1,
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      "message_id": 605,
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      "message_received": "และมี",
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      "editor_id": 33,
      "message_received": "สมาชิก",
      "slice_count": 1,
      "slices": "สมาชิก|",
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      "message_received": "บางตัวค่ะที่",
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      "message_received": "อยู่ใน Set B",
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      "slices": "อยู่ในเซต B |",
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      "message_id": 609,
      "editor_id": 43,
      "message_received": " นะคะแต่",
      "slice_count": 1,
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      "message_id": 610,
      "editor_id": 43,
      "message_received": "ไม่อยู่ใน",
      "slice_count": 1,
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      "message_id": 611,
      "editor_id": 43,
      "message_received": "เซต a ค่ะ",
      "slice_count": 1,
      "slices": "เซต A ค่ะ|",
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      "message_id": 612,
      "editor_id": 43,
      "message_received": "ภาษา",
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      "editor_id": 43,
      "message_received": "แล้วเดี๋ยวเรา",
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      "slices": "เพราะฉะนั้นแล้ว |เดี๋ยวเรา|",
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      "message_id": 614,
      "editor_id": 43,
      "message_received": "ไปพิจารณา",
      "slice_count": 1,
      "slices": "ไปพิจารณา|",
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      "message_id": 615,
      "editor_id": 43,
      "message_received": "กันดีกว่าค่ะ",
      "slice_count": 1,
      "slices": "กันดีกว่าค่ะ|",
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      "message_id": 616,
      "editor_id": 43,
      "message_received": "ว่าความ",
      "slice_count": 2,
      "slices": " |ว่าความ|",
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      "message_id": 617,
      "editor_id": 43,
      "message_received": "สัมพันธ์ของเซลล์ในลักษณะ",
      "slice_count": 1,
      "slices": "สัมพันธ์ของเซตในลักษณะ|",
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      "message_id": 618,
      "editor_id": 43,
      "message_received": "นี้จะเรียกว่า",
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      "slices": "นี้ |จะเรียกว่า|",
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      "message_id": 619,
      "editor_id": 43,
      "message_received": "อย่างไรค่ะ",
      "slice_count": 1,
      "slices": "อย่างไรค่ะ|",
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      "message_id": 620,
      "editor_id": 43,
      "message_received": "เสน่ห์นะคะ",
      "slice_count": 1,
      "slices": "เซต A นะคะ|",
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      "message_id": 621,
      "editor_id": 43,
      "message_received": "ไม่เป็นสับเซต",
      "slice_count": 1,
      "slices": "ไม่เป็นสับเซต|",
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      "message_id": 622,
      "editor_id": 33,
      "message_received": "ของเซตดีนะ",
      "slice_count": 1,
      "slices": "ของ เซต B  นะ|",
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      "message_id": 623,
      "editor_id": 33,
      "message_received": "ก็ต่อเมื่อ",
      "slice_count": 2,
      "slices": " |ก็ต่อเมื่อ|",
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      "message_id": 624,
      "editor_id": 33,
      "message_received": "มี",
      "slice_count": 1,
      "slices": "มี|",
      "edit_duration": 7.027,
      "edit_duration_all": 7.027,
      "is_forceout": false
    },
    {
      "message_id": 625,
      "editor_id": 33,
      "message_received": "สมาชิก",
      "slice_count": 1,
      "slices": "สมาชิก|",
      "edit_duration": 6.443,
      "edit_duration_all": 6.443,
      "is_forceout": false
    },
    {
      "message_id": 626,
      "editor_id": 33,
      "message_received": "อย่างน้อย 1",
      "slice_count": 1,
      "slices": "อย่างน้อย 1|",
      "edit_duration": 5.829,
      "edit_duration_all": 5.829,
      "is_forceout": false
    },
    {
      "message_id": 627,
      "editor_id": 33,
      "message_received": " ตัวของเซต a ค่ะ",
      "slice_count": 1,
      "slices": " ตัวของเซต A  ค่ะ|",
      "edit_duration": 5.222,
      "edit_duration_all": 5.222,
      "is_forceout": false
    },
    {
      "message_id": 628,
      "editor_id": 33,
      "message_received": "ที่ไม่",
      "slice_count": 2,
      "slices": " |ที่ไม่|",
      "edit_duration": 3.654,
      "edit_duration_all": 5.127,
      "is_forceout": false
    },
    {
      "message_id": 629,
      "editor_id": 33,
      "message_received": "เป็นสมาชิก",
      "slice_count": 1,
      "slices": "เป็นสมาชิก|",
      "edit_duration": 4.412,
      "edit_duration_all": 4.412,
      "is_forceout": false
    },
    {
      "message_id": 630,
      "editor_id": 33,
      "message_received": "ของเซต B นะคะ",
      "slice_count": 1,
      "slices": "ของเซต B นะคะ|",
      "edit_duration": 4.047,
      "edit_duration_all": 4.047,
      "is_forceout": false
    },
    {
      "message_id": 631,
      "editor_id": 33,
      "message_received": "โดย",
      "slice_count": 2,
      "slices": " |โดย|",
      "edit_duration": 1.321,
      "edit_duration_all": 6.834,
      "is_forceout": false
    },
    {
      "message_id": 632,
      "editor_id": 33,
      "message_received": " Set a ไม่เป็นสับเซต",
      "slice_count": 1,
      "slices": " เซต A ไม่เป็นสับเซต|",
      "edit_duration": 5.429,
      "edit_duration_all": 5.429,
      "is_forceout": false
    },
    {
      "message_id": 633,
      "editor_id": 33,
      "message_received": "ของเซต B",
      "slice_count": 1,
      "slices": "ของเซต B|",
      "edit_duration": 4.97,
      "edit_duration_all": 4.97,
      "is_forceout": false
    },
    {
      "message_id": 634,
      "editor_id": 33,
      "message_received": " นะคะจะเขียน",
      "slice_count": 2,
      "slices": " นะคะ |จะเขียน|",
      "edit_duration": 3.856,
      "edit_duration_all": 6.687,
      "is_forceout": false
    },
    {
      "message_id": 635,
      "editor_id": 33,
      "message_received": "แทนด้วยเซต a ค่ะ",
      "slice_count": 1,
      "slices": "แทนด้วยเซต A ค่ะ|",
      "edit_duration": 6.202,
      "edit_duration_all": 6.202,
      "is_forceout": false
    },
    {
      "message_id": 636,
      "editor_id": 33,
      "message_received": "ตาม",
      "slice_count": 2,
      "slices": " |ตาม|",
      "edit_duration": 4.245,
      "edit_duration_all": 5.125,
      "is_forceout": false
    },
    {
      "message_id": 637,
      "editor_id": 33,
      "message_received": "ด้วยสัญลักษณ์นะคะ",
      "slice_count": 1,
      "slices": "ด้วยสัญลักษณ์นะคะ |",
      "edit_duration": 4.262,
      "edit_duration_all": 4.262,
      "is_forceout": false
    },
    {
      "message_id": 638,
      "editor_id": 43,
      "message_received": "ในลักษณะคล้ายการ",
      "slice_count": 1,
      "slices": "ในลักษณะคล้ายการ|",
      "edit_duration": 3.953,
      "edit_duration_all": 3.953,
      "is_forceout": false
    },
    {
      "message_id": 639,
      "editor_id": 43,
      "message_received": "เป็นสับเซต",
      "slice_count": 1,
      "slices": "เป็นสับเซต|",
      "edit_duration": 3.178,
      "edit_duration_all": 3.178,
      "is_forceout": false
    },
    {
      "message_id": 640,
      "editor_id": 43,
      "message_received": "นะคะแต่มีผิดพลาด",
      "slice_count": 2,
      "slices": "นะคะ |แต่มีขีด|",
      "edit_duration": 1.786,
      "edit_duration_all": 12.699,
      "is_forceout": false
    },
    {
      "message_id": 641,
      "editor_id": 43,
      "message_received": "ค่ะแล้วก็ตามด้วย",
      "slice_count": 2,
      "slices": "พาดค่ะ |แล้วก็ตามด้วย|",
      "edit_duration": 12.112,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 642,
      "editor_id": 43,
      "message_received": "ดีค่ะ",
      "slice_count": 1,
      "slices": " d ค่ะ|",
      "edit_duration": 15.798,
      "edit_duration_all": 15.798,
      "is_forceout": false
    },
    {
      "message_id": 643,
      "editor_id": 43,
      "message_received": "จากตัวอย่างเมื่อสักครู่",
      "slice_count": 2,
      "slices": " |จากตัวอย่างเมื่อสักครู่|",
      "edit_duration": 12.485,
      "edit_duration_all": 14.282,
      "is_forceout": false
    },
    {
      "message_id": 644,
      "editor_id": 43,
      "message_received": "นี้นะคะนักเรียน",
      "slice_count": 2,
      "slices": "นี้นะคะ |นักเรียน|",
      "edit_duration": 13.396,
      "edit_duration_all": 14.453,
      "is_forceout": false
    },
    {
      "message_id": 645,
      "editor_id": 43,
      "message_received": "จะสังเกตเห็น",
      "slice_count": 1,
      "slices": "จะสังเกตเห็น|",
      "edit_duration": 13.486,
      "edit_duration_all": 13.486,
      "is_forceout": false
    },
    {
      "message_id": 646,
      "editor_id": 43,
      "message_received": "ว่านะคะ",
      "slice_count": 1,
      "slices": "ว่านะคะ|",
      "edit_duration": 12.652,
      "edit_duration_all": 12.652,
      "is_forceout": false
    },
    {
      "message_id": 647,
      "editor_id": 43,
      "message_received": "ตัวอย่างเช่นมี",
      "slice_count": 2,
      "slices": " |ตัวอย่างเช่น มี|",
      "edit_duration": 12.097,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 648,
      "editor_id": 43,
      "message_received": " 4 ค่ะ",
      "slice_count": 1,
      "slices": "  ค่ะ|",
      "edit_duration": 16.015,
      "edit_duration_all": 16.015,
      "is_forceout": true
    },
    {
      "message_id": 649,
      "editor_id": 43,
      "message_received": "เป็นสมาชิก",
      "slice_count": 1,
      "slices": " เป็นสมาชิก|",
      "edit_duration": 16.008,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 650,
      "editor_id": 43,
      "message_received": "ของเซต a นะคะ",
      "slice_count": 1,
      "slices": "ของเซต a นะคะ|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 651,
      "editor_id": 33,
      "message_received": "สีนะคะไม่",
      "slice_count": 1,
      "slices": "c นะคะ ไม่|",
      "edit_duration": 6.036,
      "edit_duration_all": 6.036,
      "is_forceout": false
    },
    {
      "message_id": 652,
      "editor_id": 33,
      "message_received": "ได้เป็นสมาชิก",
      "slice_count": 1,
      "slices": "ได้เป็นสมาชิก|",
      "edit_duration": 4.814,
      "edit_duration_all": 4.814,
      "is_forceout": false
    },
    {
      "message_id": 653,
      "editor_id": 33,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
      "edit_duration": 3.841,
      "edit_duration_all": 3.841,
      "is_forceout": false
    },
    {
      "message_id": 654,
      "editor_id": 33,
      "message_received": "เราจึงกล่าวได้ว่า",
      "slice_count": 2,
      "slices": " |เราจึงกล่าวได้ว่า|",
      "edit_duration": 2.703,
      "edit_duration_all": 5.905,
      "is_forceout": false
    },
    {
      "message_id": 655,
      "editor_id": 33,
      "message_received": "เซต a นะคะไม่เป็น",
      "slice_count": 2,
      "slices": "เซต A นะคะ |ไม่เป็น|",
      "edit_duration": 5.069,
      "edit_duration_all": 9.142,
      "is_forceout": false
    },
    {
      "message_id": 656,
      "editor_id": 33,
      "message_received": "เซตของ",
      "slice_count": 1,
      "slices": "เซตของ|",
      "edit_duration": 7.658,
      "edit_duration_all": 7.658,
      "is_forceout": false
    },
    {
      "message_id": 657,
      "editor_id": 33,
      "message_received": "เซตนี้ค่ะ",
      "slice_count": 1,
      "slices": "เซต B ค่ะ|",
      "edit_duration": 7.656,
      "edit_duration_all": 7.656,
      "is_forceout": false
    },
    {
      "message_id": 658,
      "editor_id": 33,
      "message_received": "ในทาง",
      "slice_count": 2,
      "slices": " |ในทาง|",
      "edit_duration": 5.871,
      "edit_duration_all": 6.94,
      "is_forceout": false
    },
    {
      "message_id": 659,
      "editor_id": 33,
      "message_received": "กลับกันค่ะลองมาดูที่",
      "slice_count": 2,
      "slices": "กลับกันค่ะ |ลองมาดูที่|",
      "edit_duration": 5.77,
      "edit_duration_all": 9.571,
      "is_forceout": false
    },
    {
      "message_id": 660,
      "editor_id": 33,
      "message_received": " SET มีบ้างค่ะ",
      "slice_count": 1,
      "slices": " เซต B  มีบ้างค่ะ|",
      "edit_duration": 9.184,
      "edit_duration_all": 9.184,
      "is_forceout": false
    },
    {
      "message_id": 661,
      "editor_id": 33,
      "message_received": "คือสมาชิก",
      "slice_count": 2,
      "slices": " |คือสมาชิก|",
      "edit_duration": 7.478,
      "edit_duration_all": 9.376,
      "is_forceout": false
    },
    {
      "message_id": 662,
      "editor_id": 33,
      "message_received": "ตัวนี้นะคะ",
      "slice_count": 1,
      "slices": "ตัวนี้นะคะ|",
      "edit_duration": 8.922,
      "edit_duration_all": 8.922,
      "is_forceout": false
    },
    {
      "message_id": 663,
      "editor_id": 33,
      "message_received": "คือดีค่ะดีเป็น",
      "slice_count": 2,
      "slices": " |คือ d ค่ะ d เป็น|",
      "edit_duration": 6.612,
      "edit_duration_all": 11.249,
      "is_forceout": false
    },
    {
      "message_id": 664,
      "editor_id": 43,
      "message_received": "ของเซต B นะคะ",
      "slice_count": 1,
      "slices": "ของเซต B นะคะ|",
      "edit_duration": 4.021,
      "edit_duration_all": 4.021,
      "is_forceout": false
    },
    {
      "message_id": 665,
      "editor_id": 43,
      "message_received": "แต่",
      "slice_count": 2,
      "slices": " |แต่|",
      "edit_duration": 2.782,
      "edit_duration_all": 5.669,
      "is_forceout": false
    },
    {
      "message_id": 666,
      "editor_id": 43,
      "message_received": "ดีไม่ได้",
      "slice_count": 2,
      "slices": " d |ไม่ได้|",
      "edit_duration": 5.351,
      "edit_duration_all": 8.986,
      "is_forceout": false
    },
    {
      "message_id": 667,
      "editor_id": 43,
      "message_received": "เป็นสมาชิก",
      "slice_count": 1,
      "slices": "เป็นสมาชิก|",
      "edit_duration": 7.89,
      "edit_duration_all": 7.89,
      "is_forceout": false
    },
    {
      "message_id": 668,
      "editor_id": 43,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ|",
      "edit_duration": 7.007,
      "edit_duration_all": 7.007,
      "is_forceout": false
    },
    {
      "message_id": 669,
      "editor_id": 43,
      "message_received": "ดัง",
      "slice_count": 2,
      "slices": " |ดัง|",
      "edit_duration": 6.281,
      "edit_duration_all": 7.215,
      "is_forceout": false
    },
    {
      "message_id": 670,
      "editor_id": 43,
      "message_received": "นั้นนะคะเรา",
      "slice_count": 2,
      "slices": "นั้นนะคะ |เรา|",
      "edit_duration": 6.657,
      "edit_duration_all": 15.656,
      "is_forceout": false
    },
    {
      "message_id": 671,
      "editor_id": 43,
      "message_received": "จึงกล่าวได้ว่า",
      "slice_count": 1,
      "slices": "จึงกล่าวได้ว่าเซต B |",
      "edit_duration": 14.694,
      "edit_duration_all": 14.694,
      "is_forceout": false
    },
    {
      "message_id": 672,
      "editor_id": 43,
      "message_received": " Set B นะ",
      "slice_count": 1,
      "slices": "นะ|",
      "edit_duration": 13.937,
      "edit_duration_all": 13.937,
      "is_forceout": false
    },
    {
      "message_id": 673,
      "editor_id": 43,
      "message_received": "ไม่เป็น",
      "slice_count": 2,
      "slices": "คะ |ไม่เป็น|",
      "edit_duration": 13.935,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 674,
      "editor_id": 43,
      "message_received": "สับเซตของ",
      "slice_count": 1,
      "slices": "สับเซตของ|",
      "edit_duration": 15.602,
      "edit_duration_all": 15.602,
      "is_forceout": false
    },
    {
      "message_id": 675,
      "editor_id": 43,
      "message_received": "เซต a ค่ะ",
      "slice_count": 2,
      "slices": "เซต A |ค่ะ|",
      "edit_duration": 15.593,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 676,
      "editor_id": 43,
      "message_received": "เดี๋ยว",
      "slice_count": 1,
      "slices": " เดี๋ยว|",
      "edit_duration": 16.011,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 677,
      "editor_id": 43,
      "message_received": "เรามาดูตัว",
      "slice_count": 1,
      "slices": "เรามาดูตัว|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 678,
      "editor_id": 43,
      "message_received": "อย่างเพิ่มความเข้าใจให้",
      "slice_count": 1,
      "slices": "อย่างเพิ่มความเข้าใจให้|",
      "edit_duration": 15.136,
      "edit_duration_all": 15.136,
      "is_forceout": false
    },
    {
      "message_id": 679,
      "editor_id": 43,
      "message_received": "มากขึ้นกันดีกว่านะคะ",
      "slice_count": 1,
      "slices": "มากขึ้นกันดีกว่านะคะ |",
      "edit_duration": 14.562,
      "edit_duration_all": 14.562,
      "is_forceout": false
    },
    {
      "message_id": 680,
      "editor_id": 33,
      "message_received": "ตัวอย่าง",
      "slice_count": 1,
      "slices": "ตัวอย่าง|",
      "edit_duration": 3.096,
      "edit_duration_all": 3.096,
      "is_forceout": false
    },
    {
      "message_id": 681,
      "editor_id": 33,
      "message_received": "นี้นะคะให้",
      "slice_count": 2,
      "slices": "นี้นะคะ |ให้|",
      "edit_duration": 2.768,
      "edit_duration_all": 9.384,
      "is_forceout": false
    },
    {
      "message_id": 682,
      "editor_id": 33,
      "message_received": " Set a ค่ะประกอบ",
      "slice_count": 1,
      "slices": "เซต A  ค่ะประกอบ|",
      "edit_duration": 8.178,
      "edit_duration_all": 8.178,
      "is_forceout": false
    },
    {
      "message_id": 683,
      "editor_id": 33,
      "message_received": "ไปด้วยสมา",
      "slice_count": 1,
      "slices": "ไปด้วยสมา|",
      "edit_duration": 7.278,
      "edit_duration_all": 7.278,
      "is_forceout": false
    },
    {
      "message_id": 684,
      "editor_id": 33,
      "message_received": "ชิกคือ 3",
      "slice_count": 1,
      "slices": "ชิกคือ 3|",
      "edit_duration": 6.58,
      "edit_duration_all": 6.58,
      "is_forceout": false
    },
    {
      "message_id": 685,
      "editor_id": 33,
      "message_received": " 4 และ 5",
      "slice_count": 1,
      "slices": ", 4 และ 5|",
      "edit_duration": 6.325,
      "edit_duration_all": 6.325,
      "is_forceout": false
    },
    {
      "message_id": 686,
      "editor_id": 33,
      "message_received": " นะคะ",
      "slice_count": 1,
      "slices": " นะคะ|",
      "edit_duration": 5.469,
      "edit_duration_all": 5.469,
      "is_forceout": false
    },
    {
      "message_id": 687,
      "editor_id": 33,
      "message_received": "และเซต B ค่ะประกอบ",
      "slice_count": 2,
      "slices": " |และเซต B ค่ะประกอบ|",
      "edit_duration": 4.687,
      "edit_duration_all": 11.485,
      "is_forceout": false
    },
    {
      "message_id": 688,
      "editor_id": 33,
      "message_received": "ด้วยสมาชิกคือ 0 1 2 3",
      "slice_count": 1,
      "slices": "ด้วยสมาชิกคือ 0, 1, 2, 3|",
      "edit_duration": 8.117,
      "edit_duration_all": 8.117,
      "is_forceout": false
    },
    {
      "message_id": 689,
      "editor_id": 33,
      "message_received": " 4 และ 5 ค่ะ",
      "slice_count": 1,
      "slices": ", 4 และ 5 ค่ะ|",
      "edit_duration": 7.8,
      "edit_duration_all": 7.8,
      "is_forceout": false
    },
    {
      "message_id": 690,
      "editor_id": 33,
      "message_received": "จง",
      "slice_count": 2,
      "slices": " |จง|",
      "edit_duration": 6.08,
      "edit_duration_all": 6.998,
      "is_forceout": false
    },
    {
      "message_id": 691,
      "editor_id": 33,
      "message_received": "พิจารณานะคะ",
      "slice_count": 1,
      "slices": "พิจารณานะคะ|",
      "edit_duration": 6.35,
      "edit_duration_all": 6.35,
      "is_forceout": false
    },
    {
      "message_id": 692,
      "editor_id": 33,
      "message_received": "ว่าข้อ",
      "slice_count": 2,
      "slices": " |ว่าข้อ|",
      "edit_duration": 5.778,
      "edit_duration_all": 7.131,
      "is_forceout": false
    },
    {
      "message_id": 693,
      "editor_id": 33,
      "message_received": "ความต่อไป",
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      "slices": "ความต่อไป|",
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    {
      "message_id": 694,
      "editor_id": 33,
      "message_received": "นี้เป็นจริงหรือ",
      "slice_count": 2,
      "slices": "นี้ |เป็นจริงหรือ|",
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      "edit_duration_all": 5.144,
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    {
      "message_id": 695,
      "editor_id": 43,
      "message_received": "เท็จค่ะข้อที่ 1",
      "slice_count": 1,
      "slices": "เท็จค่ะ ข้อที่ 1|",
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      "is_forceout": false
    },
    {
      "message_id": 696,
      "editor_id": 43,
      "message_received": " นะคะเซต a เป็นสับเซต",
      "slice_count": 1,
      "slices": " นะคะเซต A เป็นสับเซต|",
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      "edit_duration_all": 6.015,
      "is_forceout": false
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    {
      "message_id": 697,
      "editor_id": 43,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
      "edit_duration": 5.857,
      "edit_duration_all": 5.857,
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    {
      "message_id": 698,
      "editor_id": 43,
      "message_received": "ข้อที่ 2 นะคะ",
      "slice_count": 2,
      "slices": " |ข้อที่ 2 นะคะ|",
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      "edit_duration_all": 4.241,
      "is_forceout": false
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    {
      "message_id": 699,
      "editor_id": 43,
      "message_received": "เซต B เป็นสับเซต",
      "slice_count": 2,
      "slices": " |เซต B เป็นสับเซต|",
      "edit_duration": 3.14,
      "edit_duration_all": 7.778,
      "is_forceout": false
    },
    {
      "message_id": 700,
      "editor_id": 43,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ|",
      "edit_duration": 7.537,
      "edit_duration_all": 7.537,
      "is_forceout": false
    },
    {
      "message_id": 701,
      "editor_id": 43,
      "message_received": "เดี๋ยว",
      "slice_count": 2,
      "slices": " |เดี๋ยว|",
      "edit_duration": 6.057,
      "edit_duration_all": 7.986,
      "is_forceout": false
    },
    {
      "message_id": 702,
      "editor_id": 43,
      "message_received": "เรามาพิจารณา",
      "slice_count": 1,
      "slices": "เรามาพิจารณา|",
      "edit_duration": 6.759,
      "edit_duration_all": 6.759,
      "is_forceout": false
    },
    {
      "message_id": 703,
      "editor_id": 43,
      "message_received": "ข้อที่ 1 ก่อนนะคะ",
      "slice_count": 1,
      "slices": "ข้อที่ 1 ก่อนนะคะ|",
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      "edit_duration_all": 6.351,
      "is_forceout": false
    },
    {
      "message_id": 704,
      "editor_id": 43,
      "message_received": "จะสังเกต",
      "slice_count": 2,
      "slices": " |นักเรียนจะสังเกต|",
      "edit_duration": 4.203,
      "edit_duration_all": 8.939,
      "is_forceout": false
    },
    {
      "message_id": 705,
      "editor_id": 43,
      "message_received": "เห็นว่าสมาชิก",
      "slice_count": 1,
      "slices": "เห็นว่าสมาชิก|",
      "edit_duration": 7.897,
      "edit_duration_all": 7.897,
      "is_forceout": false
    },
    {
      "message_id": 706,
      "editor_id": 43,
      "message_received": "ของเซต",
      "slice_count": 1,
      "slices": "ของเซต |",
      "edit_duration": 7.535,
      "edit_duration_all": 7.535,
      "is_forceout": false
    },
    {
      "message_id": 707,
      "editor_id": 33,
      "message_received": " a นะคะก็",
      "slice_count": 2,
      "slices": " a นะคะ |ก็|",
      "edit_duration": 2.432,
      "edit_duration_all": 6.032,
      "is_forceout": false
    },
    {
      "message_id": 708,
      "editor_id": 33,
      "message_received": "คือมี 3",
      "slice_count": 1,
      "slices": "คือมี 3|",
      "edit_duration": 5.559,
      "edit_duration_all": 5.559,
      "is_forceout": false
    },
    {
      "message_id": 709,
      "editor_id": 33,
      "message_received": " 4 และ 5 ค่ะ",
      "slice_count": 1,
      "slices": ", 4 และ 5 ค่ะ|",
      "edit_duration": 4.723,
      "edit_duration_all": 4.723,
      "is_forceout": false
    },
    {
      "message_id": 710,
      "editor_id": 33,
      "message_received": "ซึ่งสมาชิก",
      "slice_count": 2,
      "slices": " |ซึ่งสมาชิก|",
      "edit_duration": 3.084,
      "edit_duration_all": 6.14,
      "is_forceout": false
    },
    {
      "message_id": 711,
      "editor_id": 33,
      "message_received": "ทุกตัวของเซต a นะคะ",
      "slice_count": 1,
      "slices": "ทุกตัวของเซต A นะคะ|",
      "edit_duration": 5.54,
      "edit_duration_all": 5.54,
      "is_forceout": false
    },
    {
      "message_id": 712,
      "editor_id": 33,
      "message_received": "จะเป็นสมาชิก",
      "slice_count": 2,
      "slices": " |จะเป็นสมาชิก|",
      "edit_duration": 3.284,
      "edit_duration_all": 4.485,
      "is_forceout": false
    },
    {
      "message_id": 713,
      "editor_id": 33,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
      "edit_duration": 4.271,
      "edit_duration_all": 4.271,
      "is_forceout": false
    },
    {
      "message_id": 714,
      "editor_id": 33,
      "message_received": "ดัง",
      "slice_count": 2,
      "slices": " |ดัง|",
      "edit_duration": 2.105,
      "edit_duration_all": 3.207,
      "is_forceout": false
    },
    {
      "message_id": 715,
      "editor_id": 33,
      "message_received": "นั้นนะคะเรา",
      "slice_count": 2,
      "slices": "นั้นนะคะ |เรา|",
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      "edit_duration_all": 12.147,
      "is_forceout": false
    },
    {
      "message_id": 716,
      "editor_id": 33,
      "message_received": "จะได้ว่า Set a ค่ะ",
      "slice_count": 1,
      "slices": "จะได้ว่า เซต A  ค่ะ|",
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      "edit_duration_all": 11.336,
      "is_forceout": false
    },
    {
      "message_id": 717,
      "editor_id": 33,
      "message_received": "เป็นสับเซต",
      "slice_count": 1,
      "slices": " เป็นสับเซต|",
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      "edit_duration_all": 9.561,
      "is_forceout": false
    },
    {
      "message_id": 718,
      "editor_id": 33,
      "message_received": "ของเซต B นะคะ",
      "slice_count": 1,
      "slices": "ของเซต B นะคะ|",
      "edit_duration": 9.27,
      "edit_duration_all": 9.27,
      "is_forceout": false
    },
    {
      "message_id": 719,
      "editor_id": 33,
      "message_received": "ดังนั้น",
      "slice_count": 2,
      "slices": " |ดังนั้น|",
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      "edit_duration_all": 8.214,
      "is_forceout": false
    },
    {
      "message_id": 720,
      "editor_id": 33,
      "message_received": "ข้อที่ 1 จึง",
      "slice_count": 1,
      "slices": " ข้อที่ 1 จึง|",
      "edit_duration": 7.691,
      "edit_duration_all": 7.691,
      "is_forceout": false
    },
    {
      "message_id": 721,
      "editor_id": 43,
      "message_received": "เป็นจริงค่ะ",
      "slice_count": 1,
      "slices": "เป็นจริงค่ะ |",
      "edit_duration": 5.314,
      "edit_duration_all": 5.314,
      "is_forceout": false
    },
    {
      "message_id": 722,
      "editor_id": 43,
      "message_received": "แล้วมาดู",
      "slice_count": 1,
      "slices": "เดี๋ยวเราแล้วมาดู|",
      "edit_duration": 7.224,
      "edit_duration_all": 7.224,
      "is_forceout": false
    },
    {
      "message_id": 723,
      "editor_id": 43,
      "message_received": "ข้อที่ 2 นะ",
      "slice_count": 1,
      "slices": "ข้อที่ 2 นะ|",
      "edit_duration": 6.739,
      "edit_duration_all": 6.739,
      "is_forceout": false
    },
    {
      "message_id": 724,
      "editor_id": 43,
      "message_received": "คะนั่นแหละ",
      "slice_count": 2,
      "slices": "คะ |น|",
      "edit_duration": 6.188,
      "edit_duration_all": 12.585,
      "is_forceout": false
    },
    {
      "message_id": 725,
      "editor_id": 43,
      "message_received": "จะสังเกตเห็น",
      "slice_count": 1,
      "slices": "ักเรียนจะสังเกตเห็น|",
      "edit_duration": 11.493,
      "edit_duration_all": 11.493,
      "is_forceout": false
    },
    {
      "message_id": 726,
      "editor_id": 43,
      "message_received": "ว่าศูนย์นะคะเป็น",
      "slice_count": 3,
      "slices": "ว่า 0 |นะคะ |เป็น|",
      "edit_duration": 10.281,
      "edit_duration_all": 13.801,
      "is_forceout": false
    },
    {
      "message_id": 727,
      "editor_id": 43,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
      "edit_duration": 13.148,
      "edit_duration_all": 13.148,
      "is_forceout": false
    },
    {
      "message_id": 728,
      "editor_id": 43,
      "message_received": "แต่",
      "slice_count": 2,
      "slices": " |แต่|",
      "edit_duration": 11.954,
      "edit_duration_all": 13.947,
      "is_forceout": false
    },
    {
      "message_id": 729,
      "editor_id": 43,
      "message_received": "สู้นะคะ",
      "slice_count": 2,
      "slices": " 0 |นะคะ|",
      "edit_duration": 13.439,
      "edit_duration_all": 14.854,
      "is_forceout": false
    },
    {
      "message_id": 730,
      "editor_id": 43,
      "message_received": "ไม่ได้เป็น",
      "slice_count": 2,
      "slices": " |ไม่ได้เป็น|",
      "edit_duration": 13.799,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 731,
      "editor_id": 43,
      "message_received": "สมาชิกของเซต",
      "slice_count": 1,
      "slices": "สมาชิกของเซต|",
      "edit_duration": 16.008,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 732,
      "editor_id": 43,
      "message_received": " a ค่ะ",
      "slice_count": 1,
      "slices": " A ค่ะ|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 733,
      "editor_id": 43,
      "message_received": "ดัง",
      "slice_count": 1,
      "slices": " ดัง|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 734,
      "editor_id": 43,
      "message_received": "นั้นนะคะเรา",
      "slice_count": 2,
      "slices": "นั้นนะคะ |เรา|",
      "edit_duration": 15.991,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 735,
      "editor_id": 43,
      "message_received": "จะได้ว่าเซตดีนะ",
      "slice_count": 1,
      "slices": "จะได้ว่าเซต นะ|",
      "edit_duration": 16.011,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 736,
      "editor_id": 43,
      "message_received": "คะไม่เป็นสับเซต",
      "slice_count": 1,
      "slices": "คะไม่เป็นสับเซต|",
      "edit_duration": 16.012,
      "edit_duration_all": 16.012,
      "is_forceout": true
    },
    {
      "message_id": 737,
      "editor_id": 33,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ |",
      "edit_duration": 4.407,
      "edit_duration_all": 4.407,
      "is_forceout": false
    },
    {
      "message_id": 738,
      "editor_id": 33,
      "message_received": "ดัง",
      "slice_count": 1,
      "slices": "ดัง|",
      "edit_duration": 2.591,
      "edit_duration_all": 2.591,
      "is_forceout": false
    },
    {
      "message_id": 739,
      "editor_id": 33,
      "message_received": "นั้นนะคะข้อที่",
      "slice_count": 2,
      "slices": "นั้นนะคะ |ข้อที่|",
      "edit_duration": 1.762,
      "edit_duration_all": 2.528,
      "is_forceout": false
    },
    {
      "message_id": 740,
      "editor_id": 33,
      "message_received": " 2 ค่ะ",
      "slice_count": 1,
      "slices": " 2 ค่ะ|",
      "edit_duration": 1.887,
      "edit_duration_all": 1.887,
      "is_forceout": false
    },
    {
      "message_id": 741,
      "editor_id": 33,
      "message_received": "จริงเป็นเท็จนะคะ",
      "slice_count": 2,
      "slices": " |จึงเป็นเท็จนะคะ |",
      "edit_duration": 1.452,
      "edit_duration_all": 5.499,
      "is_forceout": false
    },
    {
      "message_id": 742,
      "editor_id": 33,
      "message_received": "นอกจาก",
      "slice_count": 1,
      "slices": "นอกจาก|",
      "edit_duration": 5.6,
      "edit_duration_all": 5.6,
      "is_forceout": false
    },
    {
      "message_id": 743,
      "editor_id": 33,
      "message_received": "การพิจารณา",
      "slice_count": 1,
      "slices": "การพิจารณา|",
      "edit_duration": 4.375,
      "edit_duration_all": 4.375,
      "is_forceout": false
    },
    {
      "message_id": 744,
      "editor_id": 33,
      "message_received": "การเป็นสับเซต",
      "slice_count": 1,
      "slices": "การเป็นสับเซต|",
      "edit_duration": 3.823,
      "edit_duration_all": 3.823,
      "is_forceout": false
    },
    {
      "message_id": 745,
      "editor_id": 33,
      "message_received": "หรือไม่เป็นสับเซต",
      "slice_count": 1,
      "slices": "หรือไม่เป็นสับเซต|",
      "edit_duration": 2.773,
      "edit_duration_all": 2.773,
      "is_forceout": false
    },
    {
      "message_id": 746,
      "editor_id": 33,
      "message_received": "แล้วนะคะยัง",
      "slice_count": 2,
      "slices": "แล้วนะคะ |ยัง|",
      "edit_duration": 2.376,
      "edit_duration_all": 3.991,
      "is_forceout": false
    },
    {
      "message_id": 747,
      "editor_id": 33,
      "message_received": "มีสิ่งที่",
      "slice_count": 1,
      "slices": "มีสิ่งที่|",
      "edit_duration": 3.099,
      "edit_duration_all": 3.099,
      "is_forceout": false
    },
    {
      "message_id": 748,
      "editor_id": 33,
      "message_received": "น่าสนใจนะคะ",
      "slice_count": 1,
      "slices": "น่าสนใจนะคะ|",
      "edit_duration": 2.866,
      "edit_duration_all": 2.866,
      "is_forceout": false
    },
    {
      "message_id": 749,
      "editor_id": 33,
      "message_received": "ความ",
      "slice_count": 2,
      "slices": " |จากความ|",
      "edit_duration": 1.948,
      "edit_duration_all": 5.507,
      "is_forceout": false
    },
    {
      "message_id": 750,
      "editor_id": 33,
      "message_received": "รู้ในเรื่อง",
      "slice_count": 1,
      "slices": "รู้ในเรื่อง|",
      "edit_duration": 4.81,
      "edit_duration_all": 4.81,
      "is_forceout": false
    },
    {
      "message_id": 751,
      "editor_id": 33,
      "message_received": "นี้ค่ะเดี๋ยวเรา",
      "slice_count": 2,
      "slices": "นี้ค่ะ |เดี๋ยวเรา|",
      "edit_duration": 4.288,
      "edit_duration_all": 4.591,
      "is_forceout": false
    },
    {
      "message_id": 752,
      "editor_id": 43,
      "message_received": "ไปดูกันเลย",
      "slice_count": 1,
      "slices": "ไปดูกันเลย|",
      "edit_duration": 5.979,
      "edit_duration_all": 5.979,
      "is_forceout": false
    },
    {
      "message_id": 753,
      "editor_id": 43,
      "message_received": "ดีกว่านะคะ",
      "slice_count": 1,
      "slices": "ดีกว่านะคะ|",
      "edit_duration": 5.893,
      "edit_duration_all": 5.893,
      "is_forceout": false
    },
    {
      "message_id": 754,
      "editor_id": 43,
      "message_received": "ความ",
      "slice_count": 2,
      "slices": " |ความ|",
      "edit_duration": 2.377,
      "edit_duration_all": 5.688,
      "is_forceout": false
    },
    {
      "message_id": 755,
      "editor_id": 43,
      "message_received": "รู้นี้ค่ะ",
      "slice_count": 1,
      "slices": "รู้นี้ค่ะ|",
      "edit_duration": 4.356,
      "edit_duration_all": 4.356,
      "is_forceout": false
    },
    {
      "message_id": 756,
      "editor_id": 43,
      "message_received": "เซตว่างเป็น",
      "slice_count": 2,
      "slices": " |เซตว่างเป็น|",
      "edit_duration": 3.189,
      "edit_duration_all": 6.318,
      "is_forceout": false
    },
    {
      "message_id": 757,
      "editor_id": 43,
      "message_received": "สับเซตของเซตทุกเซตนะคะ",
      "slice_count": 1,
      "slices": "สับเซตของเซตทุกเซตนะคะ|",
      "edit_duration": 4.481,
      "edit_duration_all": 4.481,
      "is_forceout": false
    },
    {
      "message_id": 758,
      "editor_id": 43,
      "message_received": "หมายความว่า",
      "slice_count": 2,
      "slices": " |หมายความว่า|",
      "edit_duration": 4.127,
      "edit_duration_all": 7.576,
      "is_forceout": false
    },
    {
      "message_id": 759,
      "editor_id": 43,
      "message_received": "นักเรียนจะต้อง",
      "slice_count": 1,
      "slices": "นักเรียนจะต้อง|",
      "edit_duration": 7.575,
      "edit_duration_all": 7.575,
      "is_forceout": false
    },
    {
      "message_id": 760,
      "editor_id": 43,
      "message_received": "ทราบเสมอ",
      "slice_count": 1,
      "slices": "ทราบเสมอ|",
      "edit_duration": 6.119,
      "edit_duration_all": 6.119,
      "is_forceout": false
    },
    {
      "message_id": 761,
      "editor_id": 43,
      "message_received": "นะคะว่าเซตว่างค่ะ",
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    {
      "message_id": 762,
      "editor_id": 43,
      "message_received": "สับเซต",
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      "message_id": 763,
      "editor_id": 43,
      "message_received": "ของเซตใดๆค่ะ",
      "slice_count": 1,
      "slices": "ของเซตใด ๆ ค่ะ|",
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    {
      "message_id": 764,
      "editor_id": 43,
      "message_received": "คุณครู",
      "slice_count": 2,
      "slices": " |คุณครู|",
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    {
      "message_id": 765,
      "editor_id": 43,
      "message_received": "มีคำถามชวน",
      "slice_count": 1,
      "slices": "มีคำถามชวน|",
      "edit_duration": 8.031,
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    {
      "message_id": 766,
      "editor_id": 43,
      "message_received": "คิดนะคะให้",
      "slice_count": 2,
      "slices": "คิดนะคะ |ให้|",
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      "message_id": 767,
      "editor_id": 33,
      "message_received": "นักเรียนลองคิด",
      "slice_count": 1,
      "slices": "นักเรียนลองคิด|",
      "edit_duration": 4.295,
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    {
      "message_id": 768,
      "editor_id": 33,
      "message_received": "ค่ะให้ Set a เป็นเซต",
      "slice_count": 2,
      "slices": "ค่ะ |ให้เซต A เป็นเซต|",
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    {
      "message_id": 769,
      "editor_id": 33,
      "message_received": "ใดๆนะคะ",
      "slice_count": 1,
      "slices": "ใด ๆ นะคะ|",
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      "is_forceout": false
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      "message_id": 770,
      "editor_id": 33,
      "message_received": "จงพิจารณาว่า",
      "slice_count": 2,
      "slices": " |จงพิจารณาว่า|",
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      "message_id": 771,
      "editor_id": 33,
      "message_received": "เซต a เป็นสับเซต",
      "slice_count": 1,
      "slices": "เซต A เป็นสับเซต|",
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      "is_forceout": false
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    {
      "message_id": 772,
      "editor_id": 33,
      "message_received": "ของ Set a หรือไม่ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A  หรือไม่ค่ะ|",
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      "edit_duration_all": 10.025,
      "is_forceout": false
    },
    {
      "message_id": 773,
      "editor_id": 33,
      "message_received": "นักเรียน",
      "slice_count": 2,
      "slices": " |นักเรียน|",
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      "edit_duration_all": 10.278,
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    },
    {
      "message_id": 774,
      "editor_id": 33,
      "message_received": "ลองพิจารณาดูนะคะ",
      "slice_count": 1,
      "slices": "ลองพิจารณาดูนะคะ|",
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      "is_forceout": false
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    {
      "message_id": 775,
      "editor_id": 33,
      "message_received": "ค่ะเดี๋ยว",
      "slice_count": 3,
      "slices": " |ค่ะ |เดี๋ยว|",
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      "edit_duration_all": 10.193,
      "is_forceout": false
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    {
      "message_id": 776,
      "editor_id": 33,
      "message_received": "กูจะเฉลยเลยนะคะ",
      "slice_count": 1,
      "slices": "ครูจะเฉลยเลยนะคะ|",
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      "is_forceout": false
    },
    {
      "message_id": 777,
      "editor_id": 33,
      "message_received": "เรา",
      "slice_count": 2,
      "slices": " |เรา|",
      "edit_duration": 7.559,
      "edit_duration_all": 7.927,
      "is_forceout": false
    },
    {
      "message_id": 778,
      "editor_id": 33,
      "message_received": "จะมาพิจารณา",
      "slice_count": 1,
      "slices": "จะมาพิจารณา|",
      "edit_duration": 6.956,
      "edit_duration_all": 6.956,
      "is_forceout": false
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    {
      "message_id": 779,
      "editor_id": 43,
      "message_received": "จากบทนิยาม",
      "slice_count": 1,
      "slices": "จากบทนิยาม|",
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      "edit_duration_all": 6.165,
      "is_forceout": false
    },
    {
      "message_id": 780,
      "editor_id": 43,
      "message_received": "ของการเป็นสับเซต",
      "slice_count": 1,
      "slices": "ของการเป็นสับเซต|",
      "edit_duration": 5.298,
      "edit_duration_all": 5.298,
      "is_forceout": false
    },
    {
      "message_id": 781,
      "editor_id": 43,
      "message_received": "นะคะและจะพบว่าสมาชิก",
      "slice_count": 2,
      "slices": "นะคะ |เราจะพบว่าสมาชิก|",
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      "edit_duration_all": 10.498,
      "is_forceout": false
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    {
      "message_id": 782,
      "editor_id": 43,
      "message_received": "ตัวของ",
      "slice_count": 1,
      "slices": "ตัวของ|",
      "edit_duration": 9.319,
      "edit_duration_all": 9.319,
      "is_forceout": false
    },
    {
      "message_id": 783,
      "editor_id": 43,
      "message_received": "เซต a นะคะ",
      "slice_count": 1,
      "slices": "เซต A นะคะ|",
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    {
      "message_id": 784,
      "editor_id": 43,
      "message_received": "ย่อมเป็นสมาชิก",
      "slice_count": 2,
      "slices": " |ย่อมเป็นสมาชิก|",
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      "edit_duration_all": 10.051,
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    {
      "message_id": 785,
      "editor_id": 43,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ|",
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      "is_forceout": false
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    {
      "message_id": 786,
      "editor_id": 43,
      "message_received": "ดัง",
      "slice_count": 2,
      "slices": " |ดัง|",
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      "edit_duration_all": 9.282,
      "is_forceout": false
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    {
      "message_id": 787,
      "editor_id": 43,
      "message_received": "นั้นนะคะเรา",
      "slice_count": 2,
      "slices": "นั้นนะคะ |เรา|",
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      "is_forceout": true
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    {
      "message_id": 788,
      "editor_id": 43,
      "message_received": "จึงกล่าว",
      "slice_count": 1,
      "slices": "จึงกล่าว|",
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    {
      "message_id": 789,
      "editor_id": 43,
      "message_received": "ได้ว่า Set a เป็นสับ",
      "slice_count": 1,
      "slices": "ได้ว่าเซต A เป็นสับ|",
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    {
      "message_id": 790,
      "editor_id": 43,
      "message_received": "เซตของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "เซตของเซต A ค่ะ|",
      "edit_duration": 13.637,
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      "is_forceout": false
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    {
      "message_id": 791,
      "editor_id": 43,
      "message_received": "ทักมานะ",
      "slice_count": 2,
      "slices": " |ถัดมานะ|",
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      "edit_duration_all": 14.113,
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      "message_id": 792,
      "editor_id": 33,
      "message_received": "คะเดี๋ยวจะเป็น",
      "slice_count": 2,
      "slices": "คะ |เดี๋ยวจะเป็น|",
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    {
      "message_id": 793,
      "editor_id": 33,
      "message_received": "ความรู้นะคะ",
      "slice_count": 1,
      "slices": "ความรู้นะคะ|",
      "edit_duration": 2.522,
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    {
      "message_id": 794,
      "editor_id": 33,
      "message_received": "เกี่ยวกับบท",
      "slice_count": 2,
      "slices": " |เกี่ยวกับบท|",
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    {
      "message_id": 795,
      "editor_id": 33,
      "message_received": "นิยามของเซตที่เท่า",
      "slice_count": 1,
      "slices": "นิยามของเซตที่เท่า|",
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    {
      "message_id": 796,
      "editor_id": 33,
      "message_received": "กันและสับเซตค่ะ",
      "slice_count": 1,
      "slices": "กันและสับเซตค่ะ|",
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    {
      "message_id": 797,
      "editor_id": 33,
      "message_received": "อันนี้",
      "slice_count": 2,
      "slices": " |อันนี้|",
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    {
      "message_id": 798,
      "editor_id": 33,
      "message_received": "นะคะจะเป็น",
      "slice_count": 2,
      "slices": "นะคะ |จะเป็น|",
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    {
      "message_id": 799,
      "editor_id": 33,
      "message_received": "บทนิยาม",
      "slice_count": 1,
      "slices": "บทนิยาม|",
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    {
      "message_id": 800,
      "editor_id": 33,
      "message_received": "ของเซตที่เท่ากันค่ะ",
      "slice_count": 1,
      "slices": "ของเซตที่เท่ากันค่ะ|",
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    {
      "message_id": 801,
      "editor_id": 33,
      "message_received": "จะ",
      "slice_count": 2,
      "slices": " |จะ|",
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    {
      "message_id": 802,
      "editor_id": 33,
      "message_received": "พบว่า Set a = เซต",
      "slice_count": 1,
      "slices": "พบว่าเซต A  = เซต B |",
      "edit_duration": 6.482,
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      "is_forceout": false
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    {
      "message_id": 803,
      "editor_id": 33,
      "message_received": "ดีนะคะ",
      "slice_count": 1,
      "slices": " นะคะ|",
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    {
      "message_id": 804,
      "editor_id": 33,
      "message_received": "จะหมายถึง",
      "slice_count": 2,
      "slices": " |จะหมายถึง|",
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      "edit_duration_all": 5.775,
      "is_forceout": false
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    {
      "message_id": 805,
      "editor_id": 33,
      "message_received": "สมาชิกทุก",
      "slice_count": 1,
      "slices": "สมาชิกทุก|",
      "edit_duration": 5.078,
      "edit_duration_all": 5.078,
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    {
      "message_id": 806,
      "editor_id": 43,
      "message_received": "ตัวของเซต a นะคะ",
      "slice_count": 1,
      "slices": "ตัวของเซต A นะคะ|",
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      "edit_duration_all": 7.551,
      "is_forceout": false
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    {
      "message_id": 807,
      "editor_id": 43,
      "message_received": "เป็นสมาชิก",
      "slice_count": 2,
      "slices": " |เป็นสมาชิก|",
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    {
      "message_id": 808,
      "editor_id": 43,
      "message_received": "สวัสดีค่ะ",
      "slice_count": 1,
      "slices": "เซต B ค่ะ|",
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      "edit_duration_all": 10.954,
      "is_forceout": false
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    {
      "message_id": 809,
      "editor_id": 43,
      "message_received": "และ",
      "slice_count": 2,
      "slices": " |และ|",
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      "edit_duration_all": 13.995,
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    {
      "message_id": 810,
      "editor_id": 43,
      "message_received": "สมาชิก",
      "slice_count": 1,
      "slices": "สมาชิก|",
      "edit_duration": 13.101,
      "edit_duration_all": 13.101,
      "is_forceout": false
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      "message_id": 811,
      "editor_id": 43,
      "message_received": "ทุกตัวของ",
      "slice_count": 1,
      "slices": "ทุกตัวของ|",
      "edit_duration": 12.708,
      "edit_duration_all": 12.708,
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    {
      "message_id": 812,
      "editor_id": 43,
      "message_received": "เซตดีนะ",
      "slice_count": 2,
      "slices": "เซต B |นะ|",
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      "edit_duration_all": 14.058,
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      "message_id": 813,
      "editor_id": 43,
      "message_received": "คะเป็นสมาชิก",
      "slice_count": 1,
      "slices": "คะเป็นสมาชิก|",
      "edit_duration": 13.345,
      "edit_duration_all": 13.345,
      "is_forceout": false
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    {
      "message_id": 814,
      "editor_id": 43,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A ค่ะ|",
      "edit_duration": 13.281,
      "edit_duration_all": 13.281,
      "is_forceout": false
    },
    {
      "message_id": 815,
      "editor_id": 43,
      "message_received": "และบทนิยาม",
      "slice_count": 2,
      "slices": " |และบทนิยาม|",
      "edit_duration": 10.725,
      "edit_duration_all": 15.341,
      "is_forceout": false
    },
    {
      "message_id": 816,
      "editor_id": 43,
      "message_received": "อีกอันนึง",
      "slice_count": 1,
      "slices": "อีกอันหนึ่ง|",
      "edit_duration": 14.692,
      "edit_duration_all": 14.692,
      "is_forceout": false
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    {
      "message_id": 817,
      "editor_id": 43,
      "message_received": "นะคะเป็นบทนิยาม",
      "slice_count": 2,
      "slices": "นะคะ |เป็นบทนิยาม|",
      "edit_duration": 13.285,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 818,
      "editor_id": 43,
      "message_received": "ของการเป็นสับเซตค่ะ",
      "slice_count": 1,
      "slices": "ของการเป็นสับเซตค่ะ|",
      "edit_duration": 16.008,
      "edit_duration_all": 16.008,
      "is_forceout": true
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    {
      "message_id": 819,
      "editor_id": 43,
      "message_received": "Set a นะคะเป็น",
      "slice_count": 1,
      "slices": " เซต A นะคะเป็น|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
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    {
      "message_id": 820,
      "editor_id": 33,
      "message_received": "สับเซต",
      "slice_count": 1,
      "slices": "สับเซต|",
      "edit_duration": 8.835,
      "edit_duration_all": 8.835,
      "is_forceout": false
    },
    {
      "message_id": 821,
      "editor_id": 33,
      "message_received": "ของเซตปี",
      "slice_count": 1,
      "slices": "ของ |",
      "edit_duration": 8.524,
      "edit_duration_all": 8.524,
      "is_forceout": false
    },
    {
      "message_id": 822,
      "editor_id": 33,
      "message_received": "ก็ต่อเมื่อ",
      "slice_count": 1,
      "slices": "เซต B  ก็ต่อเมื่อ|",
      "edit_duration": 7.306,
      "edit_duration_all": 7.306,
      "is_forceout": false
    },
    {
      "message_id": 823,
      "editor_id": 33,
      "message_received": "สมาชิกทุก",
      "slice_count": 1,
      "slices": "สมาชิกทุก|",
      "edit_duration": 6.562,
      "edit_duration_all": 6.562,
      "is_forceout": false
    },
    {
      "message_id": 824,
      "editor_id": 33,
      "message_received": "ตัวของเซต",
      "slice_count": 1,
      "slices": "ตัวของ |",
      "edit_duration": 5.832,
      "edit_duration_all": 5.832,
      "is_forceout": false
    },
    {
      "message_id": 825,
      "editor_id": 33,
      "message_received": " a ค่ะ",
      "slice_count": 1,
      "slices": "เซต A   ค่ะ|",
      "edit_duration": 5.377,
      "edit_duration_all": 5.377,
      "is_forceout": false
    },
    {
      "message_id": 826,
      "editor_id": 33,
      "message_received": "เป็นสมาชิก",
      "slice_count": 2,
      "slices": " |เป็นสมาชิก|",
      "edit_duration": 4.495,
      "edit_duration_all": 5.693,
      "is_forceout": false
    },
    {
      "message_id": 827,
      "editor_id": 33,
      "message_received": "ของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต B ค่ะ|",
      "edit_duration": 5.572,
      "edit_duration_all": 5.572,
      "is_forceout": false
    },
    {
      "message_id": 828,
      "editor_id": 33,
      "message_received": "ไม่สังเกตความ",
      "slice_count": 2,
      "slices": " |นักเรียนสังเกตความ|",
      "edit_duration": 2.529,
      "edit_duration_all": 15.473,
      "is_forceout": false
    },
    {
      "message_id": 829,
      "editor_id": 33,
      "message_received": "สำคัญของอุทยาน",
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    {
      "message_id": 830,
      "editor_id": 33,
      "message_received": "ทั้งสองไหมคะ",
      "slice_count": 1,
      "slices": "ทนิยามทั้ง 2 ไหมคะ|",
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      "message_id": 831,
      "editor_id": 33,
      "message_received": "เรามาดูที่ข้อความ",
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    {
      "message_id": 832,
      "editor_id": 33,
      "message_received": "นี้กันดีกว่านะคะ",
      "slice_count": 1,
      "slices": "นี้กันดีกว่านะคะ|",
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    {
      "message_id": 833,
      "editor_id": 33,
      "message_received": "สมาชิก",
      "slice_count": 2,
      "slices": " |สมาชิก|",
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      "message_id": 834,
      "editor_id": 33,
      "message_received": "ทุกตัวของ",
      "slice_count": 1,
      "slices": "ทุกตัวของ|",
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      "is_forceout": false
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      "message_id": 835,
      "editor_id": 43,
      "message_received": "เซ็ตเอเป็น",
      "slice_count": 1,
      "slices": "เซต A เป็น|",
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      "edit_duration_all": 5.914,
      "is_forceout": false
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      "message_id": 836,
      "editor_id": 43,
      "message_received": "สมาชิกของเซต",
      "slice_count": 1,
      "slices": "สมาชิกของเซต|",
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    {
      "message_id": 837,
      "editor_id": 43,
      "message_received": " B นะคะ",
      "slice_count": 1,
      "slices": " B นะคะ|",
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      "edit_duration_all": 4.364,
      "is_forceout": false
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    {
      "message_id": 838,
      "editor_id": 43,
      "message_received": "ข้อความนี้",
      "slice_count": 2,
      "slices": " |ข้อความนี้|",
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      "message_id": 839,
      "editor_id": 43,
      "message_received": "นะคะสอดคล้อง",
      "slice_count": 2,
      "slices": "นะคะ |สอดคล้อง|",
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      "is_forceout": false
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    {
      "message_id": 840,
      "editor_id": 43,
      "message_received": "กับบทนิยาม",
      "slice_count": 1,
      "slices": "กับบทนิยาม|",
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      "edit_duration_all": 6.598,
      "is_forceout": false
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    {
      "message_id": 841,
      "editor_id": 43,
      "message_received": "ของการเป็นสับเซต",
      "slice_count": 1,
      "slices": "ของการเป็นสับเซต|",
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      "edit_duration_all": 6.475,
      "is_forceout": false
    },
    {
      "message_id": 842,
      "editor_id": 43,
      "message_received": "ด้านล่างค่ะ",
      "slice_count": 1,
      "slices": "ด้านล่างค่ะ|",
      "edit_duration": 5.717,
      "edit_duration_all": 5.717,
      "is_forceout": false
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    {
      "message_id": 843,
      "editor_id": 43,
      "message_received": "ดัง",
      "slice_count": 2,
      "slices": " |ดัง|",
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      "edit_duration_all": 4.949,
      "is_forceout": false
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    {
      "message_id": 844,
      "editor_id": 43,
      "message_received": "นั้นนะคะข้อ",
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      "slices": "นั้นนะคะ |ข้อ|",
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    {
      "message_id": 845,
      "editor_id": 43,
      "message_received": "ความด้านบนจึง",
      "slice_count": 1,
      "slices": "ความด้านบนจึง|",
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      "edit_duration_all": 12.621,
      "is_forceout": false
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    {
      "message_id": 846,
      "editor_id": 43,
      "message_received": "สามารถเขียน",
      "slice_count": 1,
      "slices": "สามารถเขียน|",
      "edit_duration": 11.916,
      "edit_duration_all": 11.916,
      "is_forceout": false
    },
    {
      "message_id": 847,
      "editor_id": 43,
      "message_received": "เป็นสัญลักษณ์",
      "slice_count": 1,
      "slices": "เป็นสัญลักษณ์|",
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    {
      "message_id": 848,
      "editor_id": 43,
      "message_received": "ได้ว่า Set a นะคะเป็น",
      "slice_count": 2,
      "slices": "ได้ว่า เซต A นะคะ |เป็น|",
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      "edit_duration_all": 9.554,
      "is_forceout": false
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    {
      "message_id": 849,
      "editor_id": 33,
      "message_received": "สับเซตของเซต B ค่ะ",
      "slice_count": 1,
      "slices": "สับเซตของเซต B ค่ะ |",
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      "is_forceout": false
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    {
      "message_id": 850,
      "editor_id": 33,
      "message_received": "เช่นเดียวกัน",
      "slice_count": 1,
      "slices": "เช่นเดียวกัน|",
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      "edit_duration_all": 4.734,
      "is_forceout": false
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    {
      "message_id": 851,
      "editor_id": 33,
      "message_received": "กับข้อความ",
      "slice_count": 1,
      "slices": "กับข้อความ|",
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      "edit_duration_all": 4.08,
      "is_forceout": false
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    {
      "message_id": 852,
      "editor_id": 33,
      "message_received": "นี้นะคะ",
      "slice_count": 1,
      "slices": "นี้นะคะ |",
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      "edit_duration_all": 2.426,
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    {
      "message_id": 853,
      "editor_id": 33,
      "message_received": "จะเห็นว่า",
      "slice_count": 1,
      "slices": "นักเรียนจะเห็นว่า|",
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    {
      "message_id": 854,
      "editor_id": 33,
      "message_received": "สมาชิกทุก",
      "slice_count": 1,
      "slices": "สมาชิกทุก|",
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      "edit_duration_all": 11.375,
      "is_forceout": false
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    {
      "message_id": 855,
      "editor_id": 33,
      "message_received": "ตัวของเซต",
      "slice_count": 1,
      "slices": "ตัวของเซต|",
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      "edit_duration_all": 10.434,
      "is_forceout": false
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    {
      "message_id": 856,
      "editor_id": 33,
      "message_received": " B เป็นสมา",
      "slice_count": 1,
      "slices": " B เป็นสมา|",
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    {
      "message_id": 857,
      "editor_id": 33,
      "message_received": "ชิกของเซต a นะ",
      "slice_count": 1,
      "slices": "ชิกของเซต A นะ|",
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      "edit_duration_all": 8.881,
      "is_forceout": false
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    {
      "message_id": 858,
      "editor_id": 33,
      "message_received": "คะเราก็สามารถ",
      "slice_count": 2,
      "slices": "คะ |เราก็สามารถ|",
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    {
      "message_id": 859,
      "editor_id": 33,
      "message_received": "เขียนเป็นสัญลักษณ์ได้ว่า",
      "slice_count": 1,
      "slices": "เขียนเป็นสัญลักษณ์ได้ว่า|",
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    {
      "message_id": 860,
      "editor_id": 33,
      "message_received": "ดีนะครับ",
      "slice_count": 1,
      "slices": " เซต B  นะค|",
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    {
      "message_id": 861,
      "editor_id": 33,
      "message_received": "เป็นสับเซต",
      "slice_count": 1,
      "slices": "ะ เป็นสับเซต|",
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    {
      "message_id": 862,
      "editor_id": 43,
      "message_received": " a ค่ะ",
      "slice_count": 1,
      "slices": " A ค่ะ|",
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    {
      "message_id": 863,
      "editor_id": 43,
      "message_received": "ดัง",
      "slice_count": 2,
      "slices": " |ดัง|",
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    {
      "message_id": 864,
      "editor_id": 43,
      "message_received": "นั้นนะคะเรา",
      "slice_count": 2,
      "slices": "นั้นนะคะ |เรา|",
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      "message_id": 865,
      "editor_id": 43,
      "message_received": "จึงได้ความ",
      "slice_count": 1,
      "slices": "จึงได้ความ|",
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      "edit_duration_all": 9.824,
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    {
      "message_id": 866,
      "editor_id": 43,
      "message_received": "รู้ใหม่ดังนี้ค่ะ",
      "slice_count": 1,
      "slices": "รู้ใหม่ดังนี้ค่ะ|",
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    {
      "message_id": 867,
      "editor_id": 43,
      "message_received": "Set a นะคะ",
      "slice_count": 2,
      "slices": " เซต A| นะคะ|",
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      "edit_duration_all": 6.652,
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    {
      "message_id": 868,
      "editor_id": 43,
      "message_received": "เท่ากับ",
      "slice_count": 2,
      "slices": " |เท่ากับ|",
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      "edit_duration_all": 7.568,
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    {
      "message_id": 869,
      "editor_id": 43,
      "message_received": "เซต B นะ",
      "slice_count": 1,
      "slices": "เซต B นะ|",
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      "edit_duration_all": 7.183,
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    {
      "message_id": 870,
      "editor_id": 43,
      "message_received": "คะก็",
      "slice_count": 2,
      "slices": "คะ |ก็|",
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      "edit_duration_all": 12.322,
      "is_forceout": false
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    {
      "message_id": 871,
      "editor_id": 43,
      "message_received": "ต่อเมื่อ",
      "slice_count": 1,
      "slices": "ต่อเมื่อ|",
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      "edit_duration_all": 11.437,
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    {
      "message_id": 872,
      "editor_id": 43,
      "message_received": "เซต a เป็นสับเซตของเซต",
      "slice_count": 1,
      "slices": "เซต A เป็นสับเซตของเซต|",
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    {
      "message_id": 873,
      "editor_id": 43,
      "message_received": "ดี",
      "slice_count": 1,
      "slices": "|",
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      "edit_duration_all": 8.995,
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      "message_id": 874,
      "editor_id": 43,
      "message_received": "นะคะและ",
      "slice_count": 2,
      "slices": " B นะคะ |และ|",
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      "message_id": 875,
      "editor_id": 43,
      "message_received": "เส้นหมี่เป็นสับเซต",
      "slice_count": 1,
      "slices": "เซต A เป็นสับเซต|",
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    {
      "message_id": 876,
      "editor_id": 43,
      "message_received": " a ค่ะ",
      "slice_count": 1,
      "slices": " A ค่ะ|",
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      "message_id": 877,
      "editor_id": 43,
      "message_received": "ข้อความ",
      "slice_count": 1,
      "slices": " ข้อความ|",
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      "edit_duration_all": 14.132,
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    {
      "message_id": 878,
      "editor_id": 43,
      "message_received": "นี้นะคะหมาย",
      "slice_count": 2,
      "slices": "นี้นะคะ |หมาย|",
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      "is_forceout": false
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      "message_id": 879,
      "editor_id": 33,
      "message_received": "ความว่าถ้า",
      "slice_count": 1,
      "slices": "ความว่าถ้า|",
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      "edit_duration_all": 6.401,
      "is_forceout": false
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      "message_id": 880,
      "editor_id": 33,
      "message_received": "นักเรียนทราบ",
      "slice_count": 1,
      "slices": "นักเรียนทราบ|",
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      "message_id": 881,
      "editor_id": 33,
      "message_received": "ว่า Set",
      "slice_count": 1,
      "slices": "ว่า เซต A |",
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      "edit_duration_all": 5.368,
      "is_forceout": false
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    {
      "message_id": 882,
      "editor_id": 33,
      "message_received": " a = เซต",
      "slice_count": 1,
      "slices": " = เซต|",
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      "edit_duration_all": 4.524,
      "is_forceout": false
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    {
      "message_id": 883,
      "editor_id": 33,
      "message_received": " B แล้ว",
      "slice_count": 1,
      "slices": " B แล้ว|",
      "edit_duration": 3.999,
      "edit_duration_all": 3.999,
      "is_forceout": false
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      "message_id": 884,
      "editor_id": 33,
      "message_received": "นักเรียน",
      "slice_count": 2,
      "slices": " |นักเรียน|",
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      "edit_duration_all": 7.87,
      "is_forceout": false
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    {
      "message_id": 885,
      "editor_id": 33,
      "message_received": "จะได้ว่า",
      "slice_count": 1,
      "slices": "จะได้ว่า|",
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      "edit_duration_all": 7.392,
      "is_forceout": false
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      "message_id": 886,
      "editor_id": 33,
      "message_received": " Set a เป็นสับ",
      "slice_count": 1,
      "slices": "เซต A เป็นสับ|",
      "edit_duration": 6.343,
      "edit_duration_all": 6.343,
      "is_forceout": false
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    {
      "message_id": 887,
      "editor_id": 33,
      "message_received": "เซตของเซต",
      "slice_count": 1,
      "slices": "เซตของเซต|",
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      "edit_duration_all": 5.537,
      "is_forceout": false
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    {
      "message_id": 888,
      "editor_id": 33,
      "message_received": " B และเซต B เป็นสับเซต",
      "slice_count": 2,
      "slices": " B| และเซต B เป็นสับเซต|",
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      "is_forceout": false
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    {
      "message_id": 889,
      "editor_id": 33,
      "message_received": "ของ Set a ค่ะ",
      "slice_count": 1,
      "slices": "ของ เซต A ค่ะ|",
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      "edit_duration_all": 7.958,
      "is_forceout": false
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    {
      "message_id": 890,
      "editor_id": 33,
      "message_received": "ในทาง",
      "slice_count": 2,
      "slices": " |ในทาง|",
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      "message_id": 891,
      "editor_id": 33,
      "message_received": "กลับกันนะ",
      "slice_count": 1,
      "slices": "กลับกันนะ|",
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      "edit_duration_all": 6.714,
      "is_forceout": false
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    {
      "message_id": 892,
      "editor_id": 33,
      "message_received": "คะถ้านักเรียน",
      "slice_count": 2,
      "slices": "คะ |ถ้านักเรียน|",
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      "edit_duration_all": 8.65,
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    {
      "message_id": 893,
      "editor_id": 33,
      "message_received": "ทราบว่า Set a เป็นสับ",
      "slice_count": 1,
      "slices": "ทราบว่าเซต A เป็นสับ|",
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      "edit_duration_all": 7.315,
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      "message_id": 894,
      "editor_id": 43,
      "message_received": "เซตของเซต",
      "slice_count": 1,
      "slices": "เซตของ|",
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      "edit_duration_all": 10.01,
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    {
      "message_id": 895,
      "editor_id": 43,
      "message_received": "ดีนะคะและ",
      "slice_count": 2,
      "slices": "เซต D นะคะ |และ|",
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    {
      "message_id": 896,
      "editor_id": 43,
      "message_received": " b เป็น",
      "slice_count": 1,
      "slices": " เซต D เป็น|",
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      "edit_duration_all": 14.835,
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    {
      "message_id": 897,
      "editor_id": 43,
      "message_received": "สับเซตของเซต",
      "slice_count": 1,
      "slices": "สับเซตของเซต|",
      "edit_duration": 14.591,
      "edit_duration_all": 14.591,
      "is_forceout": false
    },
    {
      "message_id": 898,
      "editor_id": 43,
      "message_received": "แล้ว",
      "slice_count": 1,
      "slices": "แล้ว|",
      "edit_duration": 12.901,
      "edit_duration_all": 12.901,
      "is_forceout": false
    },
    {
      "message_id": 899,
      "editor_id": 43,
      "message_received": "นะคะนักเรียนก็",
      "slice_count": 2,
      "slices": "นะคะ |นักเรียนก็|",
      "edit_duration": 11.814,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 900,
      "editor_id": 43,
      "message_received": "จะได้ว่า",
      "slice_count": 1,
      "slices": "จะได้ว่า|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 901,
      "editor_id": 43,
      "message_received": "เซต a = เซตดีเช่นกันค่ะ",
      "slice_count": 1,
      "slices": "เซต A = เช่นกันค่ะ|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 902,
      "editor_id": 43,
      "message_received": "เดี๋ยว",
      "slice_count": 1,
      "slices": "เดี๋ยว|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 903,
      "editor_id": 43,
      "message_received": "เราไปสรุป",
      "slice_count": 1,
      "slices": "เราไปสรุป|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 904,
      "editor_id": 43,
      "message_received": "สิ่งที่ได้เรียน",
      "slice_count": 1,
      "slices": "สิ่งที่ได้เรียน|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 905,
      "editor_id": 43,
      "message_received": "รู้ในวัน",
      "slice_count": 1,
      "slices": "รู้ในวัน|",
      "edit_duration": 16.011,
      "edit_duration_all": 16.011,
      "is_forceout": true
    },
    {
      "message_id": 906,
      "editor_id": 43,
      "message_received": "นี้กันอีกรอบนะคะ",
      "slice_count": 1,
      "slices": "นี้กันอีกรอบนะคะ|",
      "edit_duration": 15.818,
      "edit_duration_all": 15.818,
      "is_forceout": false
    },
    {
      "message_id": 907,
      "editor_id": 43,
      "message_received": "Set a นะ",
      "slice_count": 2,
      "slices": " |เซต A นะ|",
      "edit_duration": 12.322,
      "edit_duration_all": 16.02,
      "is_forceout": true
    },
    {
      "message_id": 908,
      "editor_id": 43,
      "message_received": "คะเท่ากับ",
      "slice_count": 1,
      "slices": "คะ ฃเท่ากับ|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 909,
      "editor_id": 33,
      "message_received": "เซต B นะ",
      "slice_count": 1,
      "slices": "เซต B นะ|",
      "edit_duration": 2.85,
      "edit_duration_all": 2.85,
      "is_forceout": false
    },
    {
      "message_id": 910,
      "editor_id": 33,
      "message_received": "คะหมาย",
      "slice_count": 2,
      "slices": "คะ |หมาย|",
      "edit_duration": 1.956,
      "edit_duration_all": 5.7,
      "is_forceout": false
    },
    {
      "message_id": 911,
      "editor_id": 33,
      "message_received": "ถึงสมาชิก",
      "slice_count": 1,
      "slices": "ถึงสมาชิก|",
      "edit_duration": 5.026,
      "edit_duration_all": 5.026,
      "is_forceout": false
    },
    {
      "message_id": 912,
      "editor_id": 33,
      "message_received": "ทุกตัวของเซต",
      "slice_count": 1,
      "slices": "ทุกตัวของเซต|",
      "edit_duration": 4.138,
      "edit_duration_all": 4.138,
      "is_forceout": false
    },
    {
      "message_id": 913,
      "editor_id": 33,
      "message_received": " a ค่ะเป็น",
      "slice_count": 2,
      "slices": " A ค่ะ |เป็น|",
      "edit_duration": 3.805,
      "edit_duration_all": 6.912,
      "is_forceout": false
    },
    {
      "message_id": 914,
      "editor_id": 33,
      "message_received": "เป็นสมาชิก",
      "slice_count": 1,
      "slices": "เป็นสมาชิก|",
      "edit_duration": 6.91,
      "edit_duration_all": 6.91,
      "is_forceout": false
    },
    {
      "message_id": 915,
      "editor_id": 33,
      "message_received": "ที่ของ csd นะคะ",
      "slice_count": 1,
      "slices": "ที่ของเซต B  นะคะ|",
      "edit_duration": 4.841,
      "edit_duration_all": 4.841,
      "is_forceout": false
    },
    {
      "message_id": 916,
      "editor_id": 33,
      "message_received": "และสมาชิก",
      "slice_count": 2,
      "slices": " |และสมาชิก|",
      "edit_duration": 3.604,
      "edit_duration_all": 7.77,
      "is_forceout": false
    },
    {
      "message_id": 917,
      "editor_id": 33,
      "message_received": "ทุกตัวของเสร็จดีค่ะ",
      "slice_count": 1,
      "slices": "ทุกตัวของ เซต B  ค่ะ|",
      "edit_duration": 6.487,
      "edit_duration_all": 6.487,
      "is_forceout": false
    },
    {
      "message_id": 918,
      "editor_id": 33,
      "message_received": "เป็นสมาชิก",
      "slice_count": 1,
      "slices": "เป็นสมาชิก|",
      "edit_duration": 9.936,
      "edit_duration_all": 9.936,
      "is_forceout": false
    },
    {
      "message_id": 919,
      "editor_id": 33,
      "message_received": "ของเซต a นะคะ",
      "slice_count": 1,
      "slices": "ของเซต A นะคะ|",
      "edit_duration": 9.744,
      "edit_duration_all": 9.744,
      "is_forceout": false
    },
    {
      "message_id": 920,
      "editor_id": 33,
      "message_received": "Set a = เซต",
      "slice_count": 2,
      "slices": " |เซต A = เซต|",
      "edit_duration": 7.17,
      "edit_duration_all": 10.307,
      "is_forceout": false
    },
    {
      "message_id": 921,
      "editor_id": 33,
      "message_received": " B นะคะ",
      "slice_count": 1,
      "slices": " B นะคะ|",
      "edit_duration": 9.811,
      "edit_duration_all": 9.811,
      "is_forceout": false
    },
    {
      "message_id": 922,
      "editor_id": 33,
      "message_received": "จะเขียน",
      "slice_count": 2,
      "slices": " |จะเขียน|",
      "edit_duration": 9.096,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 923,
      "editor_id": 33,
      "message_received": "แทนด้วย Set a Timer เครื่อง",
      "slice_count": 1,
      "slices": "แทนด้วยเซต A  ตามด้วยเครื่อง|",
      "edit_duration": 14.893,
      "edit_duration_all": 14.893,
      "is_forceout": false
    },
    {
      "message_id": 924,
      "editor_id": 43,
      "message_received": "หมายเท่ากับ",
      "slice_count": 1,
      "slices": "หมายเท่ากับ|",
      "edit_duration": 6.241,
      "edit_duration_all": 6.241,
      "is_forceout": false
    },
    {
      "message_id": 925,
      "editor_id": 43,
      "message_received": "แล้วก็ตาม",
      "slice_count": 2,
      "slices": " |แล้วก็ตาม|",
      "edit_duration": 5.529,
      "edit_duration_all": 8.536,
      "is_forceout": false
    },
    {
      "message_id": 926,
      "editor_id": 43,
      "message_received": "ด้วยเซตดีค่ะ",
      "slice_count": 2,
      "slices": "ด้วยเซต B |ค่ะ|",
      "edit_duration": 8.34,
      "edit_duration_all": 14.718,
      "is_forceout": false
    },
    {
      "message_id": 927,
      "editor_id": 43,
      "message_received": "Set a ไม่",
      "slice_count": 1,
      "slices": " เซต A ไม่|",
      "edit_duration": 12.225,
      "edit_duration_all": 12.225,
      "is_forceout": false
    },
    {
      "message_id": 928,
      "editor_id": 43,
      "message_received": "เท่ากับ C นะ",
      "slice_count": 1,
      "slices": "เท่ากับ C นะ|",
      "edit_duration": 11.329,
      "edit_duration_all": 11.329,
      "is_forceout": false
    },
    {
      "message_id": 929,
      "editor_id": 43,
      "message_received": "คะจะเขียน",
      "slice_count": 2,
      "slices": "คะ |จะเขียน|",
      "edit_duration": 10.309,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 930,
      "editor_id": 43,
      "message_received": "แทนด้วย Set a time",
      "slice_count": 1,
      "slices": "แทนด้วย เซต A  |",
      "edit_duration": 16.008,
      "edit_duration_all": 16.008,
      "is_forceout": true
    },
    {
      "message_id": 931,
      "editor_id": 43,
      "message_received": " ด้วยเครื่องหมาย",
      "slice_count": 1,
      "slices": "เขียนด้วยเครื่องหมาย|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 932,
      "editor_id": 43,
      "message_received": "ไม่เท่ากับแล้ว",
      "slice_count": 1,
      "slices": "ไม่เท่ากับแล้ว|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 933,
      "editor_id": 43,
      "message_received": "ตามด้วยเซตดีค่ะ",
      "slice_count": 2,
      "slices": " |ตามด้วยเซตดีค่ะ|",
      "edit_duration": 15.873,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 934,
      "editor_id": 43,
      "message_received": "สวนเซน a เป็นสับ",
      "slice_count": 1,
      "slices": "สวนเซน A เป็นสับ|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 935,
      "editor_id": 43,
      "message_received": "เซตของเซต",
      "slice_count": 1,
      "slices": "เซตของเซต|",
      "edit_duration": 16.01,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 936,
      "editor_id": 43,
      "message_received": "ดีนะคะ",
      "slice_count": 1,
      "slices": " B นะคะ |",
      "edit_duration": 15.897,
      "edit_duration_all": 15.897,
      "is_forceout": false
    },
    {
      "message_id": 937,
      "editor_id": 33,
      "message_received": "ก็ต่อเมื่อ",
      "slice_count": 1,
      "slices": "ก็ต่อเมื่อ|",
      "edit_duration": 5.629,
      "edit_duration_all": 5.629,
      "is_forceout": false
    },
    {
      "message_id": 938,
      "editor_id": 33,
      "message_received": "สมาชิกทุกตัว",
      "slice_count": 1,
      "slices": "สมาชิกทุกตัว|",
      "edit_duration": 4.997,
      "edit_duration_all": 4.997,
      "is_forceout": false
    },
    {
      "message_id": 939,
      "editor_id": 33,
      "message_received": "ของเซต a ค่ะ",
      "slice_count": 1,
      "slices": "ของเซต A  ค่ะ|",
      "edit_duration": 4.94,
      "edit_duration_all": 4.94,
      "is_forceout": false
    },
    {
      "message_id": 940,
      "editor_id": 33,
      "message_received": "เป็นสมาชิกของ",
      "slice_count": 2,
      "slices": " |เป็นสมาชิกของ|",
      "edit_duration": 3.084,
      "edit_duration_all": 5.428,
      "is_forceout": false
    },
    {
      "message_id": 941,
      "editor_id": 33,
      "message_received": "เซต B นะคะ",
      "slice_count": 1,
      "slices": "เซต B นะคะ|",
      "edit_duration": 5.426,
      "edit_duration_all": 5.426,
      "is_forceout": false
    },
    {
      "message_id": 942,
      "editor_id": 33,
      "message_received": "z a เป็น",
      "slice_count": 2,
      "slices": " |เซต A เป็น|",
      "edit_duration": 2.407,
      "edit_duration_all": 6.663,
      "is_forceout": false
    },
    {
      "message_id": 943,
      "editor_id": 33,
      "message_received": "สับเซตของเซต",
      "slice_count": 1,
      "slices": "สับเซตของเซต|",
      "edit_duration": 6.068,
      "edit_duration_all": 6.068,
      "is_forceout": false
    },
    {
      "message_id": 944,
      "editor_id": 33,
      "message_received": " B นะคะ",
      "slice_count": 1,
      "slices": " B นะคะ|",
      "edit_duration": 5.386,
      "edit_duration_all": 5.386,
      "is_forceout": false
    },
    {
      "message_id": 945,
      "editor_id": 33,
      "message_received": "เราจะเขียนแทน",
      "slice_count": 2,
      "slices": " |เราจะเขียนแทน|",
      "edit_duration": 4.736,
      "edit_duration_all": 9.417,
      "is_forceout": false
    },
    {
      "message_id": 946,
      "editor_id": 33,
      "message_received": "ด้วย",
      "slice_count": 1,
      "slices": "ด้วย|",
      "edit_duration": 8.846,
      "edit_duration_all": 8.846,
      "is_forceout": false
    },
    {
      "message_id": 947,
      "editor_id": 33,
      "message_received": " Set a ตามด้วย",
      "slice_count": 1,
      "slices": " เซต A ตามด้วย|",
      "edit_duration": 8.318,
      "edit_duration_all": 8.318,
      "is_forceout": false
    },
    {
      "message_id": 948,
      "editor_id": 33,
      "message_received": "เครื่องหมาย",
      "slice_count": 1,
      "slices": "เครื่องหมาย|",
      "edit_duration": 7.812,
      "edit_duration_all": 7.812,
      "is_forceout": false
    },
    {
      "message_id": 949,
      "editor_id": 33,
      "message_received": "ลักษณะนี้ค่ะและก็",
      "slice_count": 2,
      "slices": "ลักษณะนี้ค่ะ |และก็|",
      "edit_duration": 7.433,
      "edit_duration_all": 16.01,
      "is_forceout": true
    },
    {
      "message_id": 950,
      "editor_id": 33,
      "message_received": "สถาน",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 16.009,
      "edit_duration_all": 16.009,
      "is_forceout": true
    },
    {
      "message_id": 951,
      "editor_id": 33,
      "message_received": "ที่บีค่ะ",
      "slice_count": 1,
      "slices": "ตามด้วยเครื่องหมายลักศค่ะ|",
      "edit_duration": 16.021,
      "edit_duration_all": 16.021,
      "is_forceout": true
    },
    {
      "message_id": 952,
      "editor_id": 43,
      "message_received": "สวนเสนะคะ",
      "slice_count": 1,
      "slices": "สวนเซต A นะคะ|",
      "edit_duration": 8.691,
      "edit_duration_all": 8.691,
      "is_forceout": false
    },
    {
      "message_id": 953,
      "editor_id": 43,
      "message_received": "ไม่เป็นสับเซต",
      "slice_count": 2,
      "slices": " |ไม่เป็นสับเซต|",
      "edit_duration": 7.661,
      "edit_duration_all": 8.875,
      "is_forceout": false
    },
    {
      "message_id": 954,
      "editor_id": 43,
      "message_received": "ของเซต B นะ",
      "slice_count": 1,
      "slices": "ของเซต B นะ|",
      "edit_duration": 8.304,
      "edit_duration_all": 8.304,
      "is_forceout": false
    },
    {
      "message_id": 955,
      "editor_id": 43,
      "message_received": "คะเราจะ",
      "slice_count": 2,
      "slices": "คะ |เราจะ|",
      "edit_duration": 7.588,
      "edit_duration_all": 11.756,
      "is_forceout": false
    },
    {
      "message_id": 956,
      "editor_id": 43,
      "message_received": "เขียนแทนด้วย",
      "slice_count": 1,
      "slices": "เขียนแทนด้วย|",
      "edit_duration": 10.734,
      "edit_duration_all": 10.734,
      "is_forceout": false
    },
    {
      "message_id": 957,
      "editor_id": 43,
      "message_received": "นะคะ Set a ค่ะ",
      "slice_count": 1,
      "slices": "นะคะ เซต A  ค่ะ|",
      "edit_duration": 10.732,
      "edit_duration_all": 10.732,
      "is_forceout": false
    },
    {
      "message_id": 958,
      "editor_id": 43,
      "message_received": "ตามด้วยเครื่องหมาย",
      "slice_count": 2,
      "slices": " |ตามด้วยเครื่องหมาย|",
      "edit_duration": 9.046,
      "edit_duration_all": 11.647,
      "is_forceout": false
    },
    {
      "message_id": 959,
      "editor_id": 43,
      "message_received": "ลัก",
      "slice_count": 1,
      "slices": "ลัก|",
      "edit_duration": 10.433,
      "edit_duration_all": 10.433,
      "is_forceout": false
    },
    {
      "message_id": 960,
      "editor_id": 43,
      "message_received": "ษณะคล้ายการ",
      "slice_count": 1,
      "slices": "ษณะคล้ายการ|",
      "edit_duration": 9.81,
      "edit_duration_all": 9.81,
      "is_forceout": false
    },
    {
      "message_id": 961,
      "editor_id": 43,
      "message_received": "เป็นสับเซต",
      "slice_count": 1,
      "slices": "เป็นสับเซต|",
      "edit_duration": 9.019,
      "edit_duration_all": 9.019,
      "is_forceout": false
    },
    {
      "message_id": 962,
      "editor_id": 43,
      "message_received": "นะคะแต่มี",
      "slice_count": 2,
      "slices": "นะคะ |แต่มี|",
      "edit_duration": 8.466,
      "edit_duration_all": 15.514,
      "is_forceout": false
    },
    {
      "message_id": 963,
      "editor_id": 43,
      "message_received": "ผิดพลาด",
      "slice_count": 1,
      "slices": "|",
      "edit_duration": 14.849,
      "edit_duration_all": 14.849,
      "is_forceout": false
    },
    {
      "message_id": 964,
      "editor_id": 43,
      "message_received": "ค่ะและตาม",
      "slice_count": 2,
      "slices": "ขีดพาดค่ะ |และตาม|",
      "edit_duration": 14.227,
      "edit_duration_all": 15.124,
      "is_forceout": false
    },
    {
      "message_id": 965,
      "editor_id": 43,
      "message_received": "ด้วยเซต B ค่ะ",
      "slice_count": 1,
      "slices": "ด้วยเซต B ค่ะ|",
      "edit_duration": 14.797,
      "edit_duration_all": 14.797,
      "is_forceout": false
    },
    {
      "message_id": 966,
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