{
  "clip_id": "0016",
  "source_episode": "episode_013",
  "source_camera": "exterior1",
  "source_video": "/mnt/pfs/share/shentingrui/dataset/droid-100/episode_013/exterior1.mp4",
  "start_time_s": 2.0,
  "end_time_s": 16.0,
  "start_frame": 30,
  "end_frame_exclusive": 240,
  "duration_s": 14.0,
  "object_name": "black cable",
  "action_label": "place_object",
  "description": "The robot arm, holding a thin black cable, descends towards a black bag resting on a yellow surface. It carefully places the cable onto the bag and then retracts the arm upwards, leaving the cable on the bag.",
  "evidence": "The gripper and the black cable are visible at the start. The robot performs a lowering and placement motion, followed by a clear upward retraction at the end, indicating a complete 'place' 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
  }
}