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      "title": "Generating revenue\r",
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    {
      "title": "The two-sigma “problem”\r",
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    {
      "title": "Cheating and other fears\r",
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      "title": "Video production\r",
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      "title": "Standardized tests\r",
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    {
      "title": "AI tutors’ tone\r",
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    {
      "title": "Not leaving the closet\r",
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    {
      "title": "Who Khan Academy is hiring\r",
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    {
      "title": "What “grit” means to Sal",
      "startTime": 2758,
      "endTime": 0
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}