{
  "video": "2_2.mp4",
  "task": "2_2",
  "instruction_index": 1,
  "total_instructions_for_video": 2,
  "instruction": {
    "category_label": "joint",
    "category": "J4",
    "operation": "J4.1 Identity Swap",
    "prompt_en": "Change the butternut squash to a large watermelon; replace the crushing sound with a more watery, explosive splat.",
    "audio_label": {
      "audio_op": "replace",
      "sound_type": "event_sfx",
      "edit_aspect": "identity"
    },
    "difficulty": {
      "d1_object_localization": "hard",
      "d1_reason": "The instruction requires locating and isolating a specific object (butternut squash) in the scene.",
      "d2_audio_complexity": "simple",
      "d3_cross_modal_linkage": "explicit",
      "d3_reason": "The instruction explicitly mentions both a visual change (butternut squash to watermelon) and an audio change (crushing sound to watery splat)."
    }
  }
}