{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "apply_to_grounding_strategy_output",
  "type": "object",
  "required": ["strategy"],
  "properties": {
    "strategy": {
      "type": ["object", "null"],
      "required": ["steps"],
      "properties": {
        "steps": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["order", "apply_to"],
            "properties": {
              "order": { "type": "integer", "minimum": 1 },
              "apply_to": {
                "type": "object",
                "required": ["实质", "形式"],
                "properties": {
                  "实质": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": ["category_id", "category_path", "ideal_path", "rationale"],
                      "properties": {
                        "category_id": { "type": "integer" },
                        "category_path": { "type": "string", "minLength": 1 },
                        "ideal_path": { "type": "string", "minLength": 1 },
                        "element": { "type": ["string", "null"] },
                        "rationale": { "type": "string", "minLength": 1 }
                      }
                    }
                  },
                  "形式": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": ["category_id", "category_path", "ideal_path", "rationale"],
                      "properties": {
                        "category_id": { "type": "integer" },
                        "category_path": { "type": "string", "minLength": 1 },
                        "ideal_path": { "type": "string", "minLength": 1 },
                        "element": { "type": ["string", "null"] },
                        "rationale": { "type": "string", "minLength": 1 }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}