{
    "type": "object",
    "properties": {
        "foo": {
            "$ref": "#/definitions/result"
        },
        "bar": {
            "type": "string"
        }
    },
    "required": [
        "bar",
        "foo"
    ],
    "definitions": {
        "result": {
            "type": "string",
            "enum": [
                "abort",
                "fail",
                "ok"
            ]
        }
    },
    "$schema": "http://json-schema.org/draft-04/schema#"
}