POLYGON ((-0.138743256232072 51.51499066747456, -0.138953600333874 51.51483490553897, -0.139038890611871 51.51507337854448, -0.138903336267631 51.51509022894671, -0.138805620238167 51.51520938222216, -0.138654424960611 51.51524293751527, -0.13858655239969 51.51523903057809, -0.13853196731377 51.51494793143836, -0.138743256232072 51.51499066747456))