{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Linear Ring Coordinates",
  "description": "A LinearRing is closed LineString with 4 or more positions. The first and last positions are equivalent (they represent equivalent points). Though a LinearRing is not explicitly represented as a GeoJSON geometry type, it is referred to in the Polygon geometry type definition.",
  "allOf": [
    { "$ref": "http://edoc-schema.kzn.ru/geo/lineStringCoordinates" },
    {
      "minItems": 4
    }
  ]
}