{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "definitions": {
        "IOC-Country-Code": {
            "enum": [
                "AFG",
                "AHO",
                "ALB",
                "ALG"
            ],
            "type": "string",
            "description": "Three-letter country code of 212 countries and areas, used by the International Olympic Committee (IOC)."
        }
    },
    "properties": {
        "IOC-Country-Code": {
            "$ref": "#/definitions/IOC-Country-Code"
        }
    },
    "required": [
        "IOC-Country-Code"
    ]
}