[{
  "name": "Jim Knopf",
  "address": {
    "street": null,
    "number": -1,
    "country": "Lummerland"
  }
}, {
  "name": "Frau Mahlzahn",
  "address": {
    "street": "Alte Strasse",
    "number": 133,
    "country": "Kummerland"
  }
}]