centroid
{"type":"Feature","properties":{"id":2148029221},"geometry":{"type":"Point","coordinates":[-71.131761,42.347769]}}
polygon
{"type":"Feature","properties":{"id":2148029221},"geometry":{"type":"Polygon","coordinates":[[[-71.131812,42.347686],[-71.131882,42.34776],[-71.131709,42.347851],[-71.131638,42.347777],[-71.131812,42.347686],[-71.131812,42.347686]]]}}