{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
      [[90, -89.5],
       [90, 89.5],
       [-89.5, 89.5],
       [-89.5, -89.5],
       [90, -89.5]]
        ]
      }
    }
  ]
}