Editing neo slot of "ACME Vienna Office"

{
    "mainSubject": "s1demo7aaaaaaa5",
    "subjects": {
        "s1demo7aaaaaaa5": {
            "label": "ACME Vienna Office",
            "schema": "Office",
            "statements": {
                "Description": {
                    "type": "text",
                    "value": [
                        "Central European sales and support hub. Opened to accompany the Rocket product launch."
                    ]
                },
                "City": {
                    "type": "relation",
                    "value": [
                        {
                            "id": "r1demo7aaaaaar8",
                            "target": "sEpfwJLnv9T9nKk"
                        }
                    ]
                },
                "Address": {
                    "type": "text",
                    "value": [
                        "Kärntner Ring 12, 1010 Vienna"
                    ]
                },
                "Opened": {
                    "type": "number",
                    "value": 2011
                }
            }
        }
    }
}