{
  "clip_id": "0033",
  "source_episode": "episode_028",
  "source_camera": "exterior2",
  "source_video": "/mnt/pfs/share/shentingrui/dataset/droid-100/episode_028/exterior2.mp4",
  "start_time_s": 2.5,
  "end_time_s": 6.7,
  "start_frame": 37,
  "end_frame_exclusive": 101,
  "duration_s": 4.2,
  "object_name": "white sponge",
  "action_label": "place_object",
  "description": "The robot holds a white sponge-like object, lowers it smoothly from a suspended position, and places it onto the table surface near a purple sheet of paper.",
  "evidence": "The gripper is clearly visible holding the white object at the start. By the end of the trimmed segment, the object rests on the table, completing the placement action.",
  "quality": {
    "gripper_visible_start": true,
    "gripper_visible_end": true,
    "motion_smooth": true,
    "single_object_only": true,
    "object_clear": true,
    "meaningful_successful_action": true
  },
  "vlm": {
    "provider": "qwen",
    "verification_confidence": 0.9
  }
}