{
  "results": [
    {
      "search_id": "backward search example",
      "locations": [
        {
          "id": "Hyde Park",
          "properties": [
            {
              "travel_time": 1723
            }
          ]
        }
      ],
      "unreachable": [
        "ZSL London Zoo"
      ]
    }
  ]
}