Test.geojson

{
  "type": "FeatureCollection", 
  "features": [
    {
      "geometry": {
        "type": "Polygon", 
        "coordinates": [
          [
            [
              4.21875, 
              21.453068633086783
            ], 
            [
              4.21875, 
              26.27371402440643
            ], 
            [
              10.72265625, 
              26.27371402440643
            ], 
            [
              10.72265625, 
              21.453068633086783
            ], 
            [
              4.21875, 
              21.453068633086783
            ]
          ]
        ]
      }, 
      "type": "Feature", 
      "properties": {}
    }, 
    {
      "geometry": {
        "type": "Polygon", 
        "coordinates": [
          [
            [
              9.0966796875, 
              17.811456088564483
            ], 
            [
              9.0966796875, 
              21.453068633086783
            ], 
            [
              10.72265625, 
              21.453068633086783
            ], 
            [
              10.72265625, 
              26.27371402440643
            ], 
            [
              9.0966796875, 
              26.27371402440643
            ], 
            [
              9.0966796875, 
              29.22889003019423
            ], 
            [
              16.5673828125, 
              29.22889003019423
            ], 
            [
              16.5673828125, 
              17.811456088564483
            ], 
            [
              9.0966796875, 
              17.811456088564483
            ]
          ]
        ]
      }, 
      "type": "Feature", 
      "properties": {}
    }, 
    {
      "geometry": {
        "type": "Polygon", 
        "coordinates": [
          [
            [
              4.921875, 
              26.27371402440643
            ], 
            [
              4.921875, 
              30.939924331023445
            ], 
            [
              14.4580078125, 
              30.939924331023445
            ], 
            [
              14.4580078125, 
              29.22889003019423
            ], 
            [
              9.0966796875, 
              29.22889003019423
            ], 
            [
              9.0966796875, 
              26.27371402440643
            ], 
            [
              4.921875, 
              26.27371402440643
            ]
          ]
        ]
      }, 
      "type": "Feature", 
      "properties": {}
    }
  ]
}