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      "raw_caption": "",
      "raw_title": "",
      "screen_caption": "",
      "screen_title": "",
      "reviewed_changes": [],
      "verification": "automatic OCR; not independently verified",
      "timing": "observed frame time; onset/offset not known to subsecond precision",
      "is_confirmed_speech": false
    }
  ],
  "raw_ASR_segments": [],
  "speech_is_unverified": true
}