{
 "id": "B41-B",
 "counterpart": "B41-A",
 "genre": "dating",
 "interaction_family": "trigger_gesture",
 "initial_scene": {
  "description": "a garden plaza in soft afternoon light, an empty stone bench beside a flowerbed, and a wide stone fountain standing dry and still exactly two people, both fully visible and large in the frame: the player standing upright at the plaza center, and one NPC standing upright beside the empty bench",
  "third_person_player": true,
  "player_pose_and_item": "exactly two people, both fully visible and large in the frame: the player standing upright at the plaza center, and one NPC standing upright beside the empty bench",
  "action_target": "the player's wave",
  "other_key_objects": [
   "npc",
   "bench",
   "fountain"
  ],
  "shared_visual_state": [
   "the NPC stands upright beside the empty bench",
   "the wide stone fountain is dry and still"
  ],
  "camera": "locked third-person, fixed framing",
  "style": "stylized 3D third-person adventure game environment, clean uncluttered composition, readable silhouettes, medium-wide fixed gameplay camera, soft cool-neutral ambient lighting, restrained materials, no HUD, no subtitles, no readable text",
  "keyframe": "frames/B41.png"
 },
 "hidden_state": {
  "variable": "date_mode",
  "A": "NPC",
  "B": "FOUNTAIN",
  "visible_in_initial_frame": false
 },
 "rule": {
  "text": "If the date_mode is NPC, the NPC sits down on the bench; if it is FOUNTAIN, the fountain jets a tall plume of water.",
  "precondition": "date_mode == 'NPC'",
  "effect": "npc.seated = true",
  "else_effect": "fountain.running = true",
  "mapping": {
   "NPC": "npc.seated = true",
   "FOUNTAIN": "fountain.running = true"
  }
 },
 "shared_action": "The player stays in place and gives one clear wave.",
 "instruction": "Preserve the first frame. date_mode = FOUNTAIN, so the resolved rule is: the fountain jets a tall plume of water. Action: The player stays in place and gives one clear wave. Show the action, then exactly this consequence: the fountain jets a tall plume of water The counter-outcome must NOT happen at any point: the NPC sits down on the bench. Instead, the NPC stands upright beside the empty bench throughout the clip. Hold the final state for about the last second. One continuous 3-second third-person clip, fixed camera, no HUD, no subtitles, no readable text.",
 "initial_state": {
  "npc": {
   "seated": false
  },
  "fountain": {
   "running": false
  },
  "date_mode": "FOUNTAIN"
 },
 "gold_end_state": {
  "npc.seated": false,
  "fountain.running": true
 },
 "delta": {
  "fountain.running": true
 },
 "visual_vocab": {
  "npc.seated": {
   "false": "the NPC stands upright beside the empty bench",
   "true": "the NPC sits down on the bench"
  },
  "fountain.running": {
   "false": "the wide stone fountain is dry and still",
   "true": "the fountain jets a tall plume of water"
  }
 },
 "gold_A": "the NPC sits down on the bench",
 "gold_B": "the fountain jets a tall plume of water",
 "terminal_visual_states": {
  "occurs": {
   "variable": "fountain.running",
   "value": true,
   "phrase": "the fountain jets a tall plume of water",
   "judge_label": "the fountain jets water",
   "in_final_frame": true
  },
  "not_occurs": {
   "variable": "npc.seated",
   "value": true,
   "phrase": "the NPC sits down on the bench",
   "judge_label": "the NPC sits down",
   "in_final_frame": false,
   "instead_remains": "the NPC stands upright beside the empty bench"
  }
 },
 "prompt_ok": [
  "NPC",
  "FOUNTAIN"
 ],
 "judge": {
  "initial_questions": [
   {
    "question": "Is it true that the player and an NPC stand in the garden?",
    "statement": "the player and an NPC stand in the garden",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   },
   {
    "question": "Is it true that the NPC is standing and the fountain is still?",
    "statement": "the NPC is standing and the fountain is still",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   }
  ],
  "action_question": {
   "question": "Did the player give one clear wave?",
   "answers": [
    "yes",
    "no"
   ],
   "expected": "yes"
  },
  "outcome_question": {
   "question": "At the end, does the NPC sit down, or the fountain jet water?",
   "answers": [
    "the NPC sits down",
    "the fountain jets water",
    "unclear"
   ],
   "expected": "the fountain jets water",
   "not_expected": "the NPC sits down"
  }
 },
 "constraints": {
  "identical_initial_frame": true,
  "hidden_state_not_visually_leaked": true,
  "same_action_across_twins": true,
  "both_outcomes_change": true,
  "one_action_per_chunk": true,
  "duration_seconds": "2-5"
 },
 "input_image": "input.png"
}