{
  "$id": "https://example.com/person.schema.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Person",
  "type": "object",
  "properties": {
    "person": {
      "$ref": "#/definitions/person"
    }
  },
  "definitions": {
    "person": {
      "type": "object",
      "description": "A human being",
      "properties": {
        "children": {
          "type": "array",
          "description": "The children they had",
          "items": {
            "$ref": "#/definitions/person"
          }
        }
      }
    }
  }
}