<gml:Envelope srsName="http:// ...... ml:upperCorner></gml:Envelope>
Polygon ((45.01 -12.63, 45.31 -12.63, 45.31 -13.02, 45.01 -13.02, 45.01 -12.63))
{"type":"Polygon","crs":{"type ...... 5.01,-13.02],[45.01,-12.63]]]}