{
 "id": "B18-A",
 "counterpart": "B18-B",
 "genre": "detective",
 "interaction_family": "trigger_mechanism",
 "initial_scene": {
  "description": "an evidence room in cool daylight, a steel evidence cabinet with both doors shut, a large desk lamp with a dark dead bulb, and a large rotating dial knob on the wall a single detective seen in third person from behind, standing in place with a hand on the large dial",
  "third_person_player": true,
  "player_pose_and_item": "a single detective seen in third person from behind, standing in place with a hand on the large dial",
  "action_target": "the large dial",
  "other_key_objects": [
   "evidence_cabinet",
   "desk_lamp",
   "wall_dial"
  ],
  "shared_visual_state": [
   "the evidence cabinet doors are shut",
   "the large desk lamp is dark with a dead bulb"
  ],
  "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/B18.png"
 },
 "hidden_state": {
  "variable": "evidence_mode",
  "A": "CABINET",
  "B": "LAMP",
  "visible_in_initial_frame": false
 },
 "rule": {
  "text": "If the evidence_mode is CABINET, both evidence cabinet doors open wide; if it is LAMP, the desk lamp glows strong blue.",
  "precondition": "evidence_mode == 'CABINET'",
  "effect": "cabinet.open = true",
  "else_effect": "lamp.blue = true",
  "mapping": {
   "CABINET": "cabinet.open = true",
   "LAMP": "lamp.blue = true"
  }
 },
 "shared_action": "The large evidence-room dial clearly rotates by about half a turn.",
 "instruction": "Preserve the first frame. evidence_mode = CABINET, so the resolved rule is: both evidence cabinet doors open wide. Action: The large evidence-room dial clearly rotates by about half a turn. Show the action, then exactly this consequence: both evidence cabinet doors open wide The counter-outcome must NOT happen at any point: the large desk lamp glows strong blue. Instead, the large desk lamp is dark with a dead bulb 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": {
  "cabinet": {
   "open": false
  },
  "lamp": {
   "blue": false
  },
  "evidence_mode": "CABINET"
 },
 "gold_end_state": {
  "cabinet.open": true,
  "lamp.blue": false
 },
 "delta": {
  "cabinet.open": true
 },
 "visual_vocab": {
  "cabinet.open": {
   "false": "the evidence cabinet doors are shut",
   "true": "the evidence cabinet doors are both wide open"
  },
  "lamp.blue": {
   "false": "the large desk lamp is dark with a dead bulb",
   "true": "the large desk lamp glows strong blue"
  }
 },
 "gold_A": "both evidence cabinet doors open wide",
 "gold_B": "the desk lamp glows strong blue",
 "terminal_visual_states": {
  "occurs": {
   "variable": "cabinet.open",
   "value": true,
   "phrase": "the evidence cabinet doors are both wide open",
   "judge_label": "the cabinet is open",
   "in_final_frame": true
  },
  "not_occurs": {
   "variable": "lamp.blue",
   "value": true,
   "phrase": "the large desk lamp glows strong blue",
   "judge_label": "the lamp glows blue",
   "in_final_frame": false,
   "instead_remains": "the large desk lamp is dark with a dead bulb"
  }
 },
 "prompt_ok": [
  "CABINET",
  "LAMP"
 ],
 "judge": {
  "initial_questions": [
   {
    "question": "Is it true that the player stands with a hand on the wall dial?",
    "statement": "the player stands with a hand on the wall dial",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   },
   {
    "question": "Is it true that the cabinet is shut and the desk lamp is unlit?",
    "statement": "the cabinet is shut and the desk lamp is unlit",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   }
  ],
  "action_question": {
   "question": "Did the large dial clearly rotate?",
   "answers": [
    "yes",
    "no"
   ],
   "expected": "yes"
  },
  "outcome_question": {
   "question": "At the end, is the cabinet open, or the desk lamp glowing blue?",
   "answers": [
    "the cabinet is open",
    "the lamp glows blue",
    "unclear"
   ],
   "expected": "the cabinet is open",
   "not_expected": "the lamp glows blue"
  }
 },
 "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"
}