{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "defaultSchema",
  "type": "array",
  "items": {
    "id": "13",
    "type": "object",
    "properties": {
      "city": {
        "id": "city",
        "type": "object",
        "properties": {
          "name": {
            "id": "name",
            "type": "string"
          },
          "url": {
            "id": "url",
            "type": "string"
          }
        },
        "required": [
          "name"
        ]
      },
      "airport": {
        "id": "airport",
        "type": "object",
        "properties": {
          "name": {
            "id": "name",
            "type": "string"
          },
          "url": {
            "id": "url",
            "type": "string",
            "pattern": "^\/wiki\/[A-Za-z0-9-_.%(),\/]*$"

          }
        }
      }
    },
    "required": [
      "city",
      "airport"
    ]
  },
  "minItems": 1
}