{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "additionalProperties": false,
  "type": "object",
  "properties" : {
    "p" : {
      "type" : "number",
      "minimum" : 0
    },
    "data" : {"$ref" : "schema3/schema3.json"}
  }
}
