{
    "type": "object",
    "properties": {
        "@type": {
            "type" : "string"
        },
        "description": {
            "type": "string"
        },
        "createdBy": {
            "type": "object",
            "properties": {
                "@type": {
                    "type": "string"
                },
                "@id": {
                    "type": "string"
                }
            },
            required: [
                "@type",
                "@id"
            ]
        }
    },
    "required":[
        "@type",
        "description",
        "createdBy"
    ]
}