{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "description": "schema for the embedded content types",
  "type": "object",
  "id": "/includedContent",
  "oneOf": [
    {
      "$ref": "/image"
    },
    {
      "$ref": "/html"
    },
    {
      "$ref": "/tweet"
    },
    {
      "$ref": "/text"
    },
    {
      "$ref": "/gallery"
    },
    {
      "$ref": "/video"
    }
  ]
}