{
  "clip_id": "0026",
  "source_episode": "episode_020",
  "source_camera": "exterior2",
  "source_video": "/mnt/pfs/share/shentingrui/dataset/droid-100/episode_020/exterior2.mp4",
  "start_time_s": 2.0,
  "end_time_s": 6.2,
  "start_frame": 30,
  "end_frame_exclusive": 93,
  "duration_s": 4.2,
  "object_name": "folded cloth",
  "action_label": "pick_and_place",
  "description": "The robot arm descends onto a folded gray cloth on a table, grasps it, lifts it up, moves it slightly to a new position, places it back down, and begins to retract.",
  "evidence": "The gripper is visible at the start approaching the cloth and at the end having just placed it. The robot manipulates only the single gray cloth object. The motion is smooth and results in a completed repositioning of the object.",
  "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": 0.95
  }
}