{
    "properties": {
        "club": {
            "objectLink": {
                "city": "address.city",
                "name": "name"
            }
        },
        "employer": {
            "objectLink": {
                "name": "employer.name",
                "type": "employer.type"
            }
        },
        "firstName": {
            "type": "string"
        },
        "organization": {
            "objectLink": {
                "$registry": "organizations"
            }
        },
        "school": {
            "objectLink": {
                "name": "organization.name",
                "registry": "schools"
            }
        }
    }
}