{
    "id": "http://webmozart.io/fixtures/schema-refs#",
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "definitions": {
        "stringDefinition": {
            "type": "string"
        },
        "booleanDefinition": {
            "type": "boolean"
        }
    },
    "patternProperties": {
        "^[a-zA-Z]": {
            "oneOf": [
                {
                    "$ref": "#/definitions/stringDefinition"
                },
                {
                    "$ref": "#/definitions/booleanDefinition"
                }
            ]
        }
    },
    "additionalProperties": false
}