{
 "id": "B35-B",
 "counterpart": "B35-A",
 "genre": "museum",
 "interaction_family": "trigger_zone",
 "initial_scene": {
  "description": "a gallery hall in cool even light, a large brass floor marker before the center statue which faces straight forward, and a heavy curtain drawn fully closed across the back wall a single visitor seen in third person from behind, standing in place just before the floor marker",
  "third_person_player": true,
  "player_pose_and_item": "a single visitor seen in third person from behind, standing in place just before the floor marker",
  "action_target": "the gallery floor marker",
  "other_key_objects": [
   "floor_marker",
   "center_statue",
   "curtain"
  ],
  "shared_visual_state": [
   "the statue faces straight forward",
   "the curtain is drawn fully closed across the wall"
  ],
  "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/B35.png"
 },
 "hidden_state": {
  "variable": "gallery_mode",
  "A": "STATUE",
  "B": "CURTAIN",
  "visible_in_initial_frame": false
 },
 "rule": {
  "text": "If the gallery_mode is STATUE, the statue rotates a quarter turn; if it is CURTAIN, the back curtain pulls fully open.",
  "precondition": "gallery_mode == 'STATUE'",
  "effect": "statue.turned = true",
  "else_effect": "curtain.open = true",
  "mapping": {
   "STATUE": "statue.turned = true",
   "CURTAIN": "curtain.open = true"
  }
 },
 "shared_action": "The player takes one short step forward onto the large gallery floor marker.",
 "instruction": "Preserve the first frame. gallery_mode = CURTAIN, so the resolved rule is: the back curtain pulls fully open. Action: The player takes one short step forward onto the large gallery floor marker. Show the action, then exactly this consequence: the back curtain pulls fully open The counter-outcome must NOT happen at any point: the statue is rotated a quarter turn to the side. Instead, the statue faces straight forward 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": {
  "statue": {
   "turned": false
  },
  "curtain": {
   "open": false
  },
  "gallery_mode": "CURTAIN"
 },
 "gold_end_state": {
  "statue.turned": false,
  "curtain.open": true
 },
 "delta": {
  "curtain.open": true
 },
 "visual_vocab": {
  "statue.turned": {
   "false": "the statue faces straight forward",
   "true": "the statue is rotated a quarter turn to the side"
  },
  "curtain.open": {
   "false": "the curtain is drawn fully closed across the wall",
   "true": "the curtain is pulled fully open to the sides"
  }
 },
 "gold_A": "the statue rotates a quarter turn",
 "gold_B": "the back curtain pulls fully open",
 "terminal_visual_states": {
  "occurs": {
   "variable": "curtain.open",
   "value": true,
   "phrase": "the curtain is pulled fully open to the sides",
   "judge_label": "the curtain is open",
   "in_final_frame": true
  },
  "not_occurs": {
   "variable": "statue.turned",
   "value": true,
   "phrase": "the statue is rotated a quarter turn to the side",
   "judge_label": "the statue is rotated",
   "in_final_frame": false,
   "instead_remains": "the statue faces straight forward"
  }
 },
 "prompt_ok": [
  "STATUE",
  "CURTAIN"
 ],
 "judge": {
  "initial_questions": [
   {
    "question": "Is it true that the player stands before the brass floor marker?",
    "statement": "the player stands before the brass floor marker",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   },
   {
    "question": "Is it true that the statue faces forward and the curtain is closed?",
    "statement": "the statue faces forward and the curtain is closed",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   }
  ],
  "action_question": {
   "question": "Did the player step onto the floor marker?",
   "answers": [
    "yes",
    "no"
   ],
   "expected": "yes"
  },
  "outcome_question": {
   "question": "At the end, is the statue rotated, or the curtain open?",
   "answers": [
    "the statue is rotated",
    "the curtain is open",
    "unclear"
   ],
   "expected": "the curtain is open",
   "not_expected": "the statue is rotated"
  }
 },
 "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"
}