{
 "id": "B36-A",
 "counterpart": "B36-B",
 "genre": "open_world",
 "interaction_family": "trigger_zone",
 "initial_scene": {
  "description": "a ruin entrance under a pale sky, a low stone line marking the threshold, two stone pillars sunk low into the ground inside, and a wide stone fountain standing dry and still a single adventurer seen in third person from behind, standing in place one step before the entrance line",
  "third_person_player": true,
  "player_pose_and_item": "a single adventurer seen in third person from behind, standing in place one step before the entrance line",
  "action_target": "the ruin entrance line",
  "other_key_objects": [
   "entrance_line",
   "stone_pillars",
   "fountain"
  ],
  "shared_visual_state": [
   "both stone pillars are sunk low into the ground",
   "the 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/B36.png"
 },
 "hidden_state": {
  "variable": "zone_mode",
  "A": "PILLARS",
  "B": "FOUNTAIN",
  "visible_in_initial_frame": false
 },
 "rule": {
  "text": "If the zone_mode is PILLARS, both stone pillars rise tall from the ground; if it is FOUNTAIN, the fountain jets a tall plume of water.",
  "precondition": "zone_mode == 'PILLARS'",
  "effect": "pillars.up = true",
  "else_effect": "fountain.running = true",
  "mapping": {
   "PILLARS": "pillars.up = true",
   "FOUNTAIN": "fountain.running = true"
  }
 },
 "shared_action": "The player takes one short step forward across the ruin entrance line.",
 "instruction": "Preserve the first frame. zone_mode = PILLARS, so the resolved rule is: both stone pillars rise tall from the ground. Action: The player takes one short step forward across the ruin entrance line. Show the action, then exactly this consequence: both stone pillars rise tall from the ground The counter-outcome must NOT happen at any point: the fountain jets a tall plume of water. Instead, the stone fountain is dry and still 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": {
  "pillars": {
   "up": false
  },
  "fountain": {
   "running": false
  },
  "zone_mode": "PILLARS"
 },
 "gold_end_state": {
  "pillars.up": true,
  "fountain.running": false
 },
 "delta": {
  "pillars.up": true
 },
 "visual_vocab": {
  "pillars.up": {
   "false": "both stone pillars are sunk low into the ground",
   "true": "both stone pillars stand tall, risen from the ground"
  },
  "fountain.running": {
   "false": "the stone fountain is dry and still",
   "true": "the fountain jets a tall plume of water"
  }
 },
 "gold_A": "both stone pillars rise tall from the ground",
 "gold_B": "the fountain jets a tall plume of water",
 "terminal_visual_states": {
  "occurs": {
   "variable": "pillars.up",
   "value": true,
   "phrase": "both stone pillars stand tall, risen from the ground",
   "judge_label": "the pillars are risen",
   "in_final_frame": true
  },
  "not_occurs": {
   "variable": "fountain.running",
   "value": true,
   "phrase": "the fountain jets a tall plume of water",
   "judge_label": "the fountain jets water",
   "in_final_frame": false,
   "instead_remains": "the stone fountain is dry and still"
  }
 },
 "prompt_ok": [
  "PILLARS",
  "FOUNTAIN"
 ],
 "judge": {
  "initial_questions": [
   {
    "question": "Is it true that the player stands one step before the entrance line?",
    "statement": "the player stands one step before the entrance line",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   },
   {
    "question": "Is it true that the pillars are sunk low and the fountain is dry?",
    "statement": "the pillars are sunk low and the fountain is dry",
    "answers": [
     "yes",
     "no"
    ],
    "expected": "yes"
   }
  ],
  "action_question": {
   "question": "Did the player step across the entrance line?",
   "answers": [
    "yes",
    "no"
   ],
   "expected": "yes"
  },
  "outcome_question": {
   "question": "At the end, are the pillars risen tall, or the fountain jetting water?",
   "answers": [
    "the pillars are risen",
    "the fountain jets water",
    "unclear"
   ],
   "expected": "the pillars are risen",
   "not_expected": "the fountain jets water"
  }
 },
 "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"
}