POLYGON ((-0.171958735520284 51.49851812470462, -0.171849555154791 51.49854204472686, -0.171831293917537 51.49871289918373, -0.171989435839038 51.49884744933654, -0.172085419343503 51.49890076394134, -0.17212997105075 51.49889994269522, -0.172143115320545 51.49886108528315, -0.172049453517443 51.49852541508365, -0.171958735520284 51.49851812470462))