{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "choices",
    "description": "I've got class.",
    "type": "object",
    "definitions": {
        "item": {
            "type": "string",
            "enum": [
                "one",
                "two",
                "three",
                "marvelous breaking changes",
                "GA",
                "FL"
            ]
        }
    },
    "properties": {
        "value": {
            "type": "array",
            "items": {
                "$ref": "#/definitions/item"
            }
        }
    }
}