{
  "type": "object",
  "properties": {
    "events": { 
      "type": "array" ,
      "items": {
        "$ref": "event.json"
      }
    },
    "stages": { 
      "type": "array" ,
      "items": {
        "$ref": "stage.json"
      }
    }
  },
  "required": ["events", "stages"],
  "additionalProperties": false
}
