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{
  "type": "object",
  "title": "Park",
  "required": [
    "name",
    "state",
    "established",
    "areaSqMiles",
    "annualVisitors",
    "latitude",
    "longitude",
    "description",
    "regionId"
  ],
  "properties": {
    "name": {
      "type": "string",
      "description": "Official park name"
    },
    "state": {
      "type": "string",
      "description": "US state or territory where the park is located"
    },
    "latitude": {
      "type": "number",
      "description": "Latitude of the park center"
    },
    "regionId": {
      "type": "string",
      "x-ref-type": "Region",
      "description": "Geographic region identifier"
    },
    "longitude": {
      "type": "number",
      "description": "Longitude of the park center"
    },
    "areaSqMiles": {
      "type": "number",
      "description": "Park area in square miles"
    },
    "description": {
      "type": "string",
      "description": "Brief description of what makes the park special"
    },
    "established": {
      "type": "integer",
      "description": "Year the park was established"
    },
    "annualVisitors": {
      "type": "integer",
      "description": "Approximate recent annual visitor count"
    }
  },
  "description": "A US national park with location, establishment date, area, visitor statistics, and description."
}