{
  "instructions": [
    {
      "id": 1,
      "operation_scope": "local",
      "operation": "replace",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Replace the kitchen island countertop with a dark brown material, ensuring the new surface matches the integrated sink and maintains the original curved shape.",
      "rationale_cn": "厨房岛台是主要对象，颜色变化清晰可辨，符合局部编辑要求。",
      "semantic_group": 1,
      "variant_id": 1
    },
    {
      "id": 2,
      "operation_scope": "local",
      "operation": "replace",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Swap the kitchen island to a wooden variant with visible grain texture, preserving camera geometry and scene depth.",
      "rationale_cn": "使用具体颜色描述，避免模糊，确保可执行性。",
      "semantic_group": 1,
      "variant_id": 2
    },
    {
      "id": 3,
      "operation_scope": "local",
      "operation": "replace",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Substitute the kitchen island with a concrete version of identical footprint while keeping edges, scale, and lighting continuity.",
      "rationale_cn": "明确颜色变化，语义一致，符合变体组要求。",
      "semantic_group": 1,
      "variant_id": 3
    },
    {
      "id": 4,
      "operation_scope": "local",
      "operation": "move",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Move the kitchen island slightly toward the visual center while preserving scale and perspective.",
      "rationale_cn": "材质替换清晰，对象唯一，符合局部编辑规范。",
      "semantic_group": 2,
      "variant_id": 1
    },
    {
      "id": 5,
      "operation_scope": "local",
      "operation": "move",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Shift the kitchen island to a nearby position with physically plausible alignment.",
      "rationale_cn": "具体材质描述，避免歧义，确保可执行。",
      "semantic_group": 2,
      "variant_id": 2
    },
    {
      "id": 6,
      "operation_scope": "local",
      "operation": "move",
      "target": "object_id=obj_001; name=kitchen island; cues=large curved granite countertop|integrated sink; temporal_presence=1.00; center_proximity=0.80",
      "instruction": "Reposition the kitchen island subtly and keep contact points and shadows coherent.",
      "rationale_cn": "材质变化明确，语义一致，符合变体组要求。",
      "semantic_group": 2,
      "variant_id": 3
    },
    {
      "id": 7,
      "operation_scope": "global",
      "operation": "change_background",
      "target": "scene_region=<global>; theme=<overall style and atmosphere>",
      "instruction": "Replace the background with a minimalist white kitchen.",
      "rationale_cn": "全局背景替换，避免具体对象指代，符合全局指令规范。",
      "semantic_group": 4,
      "variant_id": 1
    },
    {
      "id": 8,
      "operation_scope": "global",
      "operation": "change_background",
      "target": "scene_region=<global>; theme=<overall style and atmosphere>",
      "instruction": "Replace the background with a clean white kitchen featuring visible countertops and cabinets, ensuring the entire scene is fully visible and clearly rendered.",
      "rationale_cn": "背景风格统一，语义清晰，避免模糊描述。",
      "semantic_group": 4,
      "variant_id": 2
    },
    {
      "id": 9,
      "operation_scope": "global",
      "operation": "change_background",
      "target": "scene_region=<global>; theme=<overall style and atmosphere>",
      "instruction": "Swap the background to a bright white kitchen environment.",
      "rationale_cn": "背景替换明确，符合全局指令要求，语义一致。",
      "semantic_group": 4,
      "variant_id": 3
    }
  ]
}