{
    "description": "A generic link between two (or more) entitites",
    "properties": {
        "end_date": {
            "description": "The date on which the relationship ended",
            "format": "date",
            "sortIndex": 70,
            "title": "End date",
            "type": [
                "string",
                "null"
            ]
        },
        "id": {
            "hidden": true,
            "title": "ID",
            "type": "integer"
        },
        "start_date": {
            "description": "The date on which the relationship began",
            "format": "date",
            "sortIndex": 71,
            "title": "Start date",
            "type": [
                "string",
                "null"
            ]
        }
    },
    "title": "A link between entities",
    "type": "object"
}