{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "$id": "https://example.com/product.schema.json",
  "title": "Form",
  "description": "A form",
  "type": "object",
  "required": ["form_type", "start_year", "end_year", "sections"],
  "properties": {
    "form_type": {
      "description": "",
      "type": "string"
    },
    "start_year": {
      "description": "",
      "type": "integer"
    },
    "end_year": {
      "description": "",
      "type": "integer"
    },
    "sections": {
      "description": "",
      "type": "object",
      "patternProperties": {
        "^[0-9]+$": {
          "description": "",
          "type": "string"
        },
        "label": {
          "description": "",
          "type": "string"  
        },
        "subsections": {
          "description": "",
          "type": "object",
          "patternProperties": {
            "^[0-9]+$": {
              "description": "",
              "type": "string"
            },
            "label": {
              "description": "",
              "type": "string"  
            },
            "subsections": {
              "description": "",
              "type": "object",
              "patternProperties": {
                "^[0-9]+$": {
                  "description": "",
                  "type": "string"
                },
                "label": {
                  "description": "",
                  "type": "string"  
                },
                "pages": {
                  "description": "",
                  "type": "object",
                  "patternProperties": {
                    "^[0-9]+$": {
                      "description": "",
                      "type": "string"
                    }
                  },
                  "questions": {
                    "description": "",
                    "type": "object",
                    "patternProperties": {
                      "^[0-9]+$": {
                        "description": "",
                        "type": "string"
                      },
                      "conditional_for": {
                        "type": "object",
                        "properties": ""
                      }
                    }
                  },
                  "conditional_route_to": {
                    "type": "object",
                    "properties": ""
                  },
                  "default_next_page": {
                    "type" : "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}