POLYGON((1.81873 50.70642,1.817 50.70662,1.81702 50.70578,1.81754 50.70468,1.81866 50.70484,1.82024 50.70486,1.82114 50.70508,1.81993 50.70622,1.81923 50.70617,1.81888 50.70617,1.81873 50.70642))