POLYGON ((-0.021153806754181 51.68508683266719, -0.021341958759671 51.68501539687105, -0.02148630468907 51.68509830307748, -0.021395084880371 51.6855254499015, -0.021132519867188 51.68557498081581, -0.021103466596158 51.68558754695682, -0.020892951107651 51.68540008830431, -0.02086395718282 51.68537262249101, -0.020803886542472 51.68528878536134, -0.020788702941817 51.68526138046672, -0.021062379186785 51.68508682817349, -0.021153806754181 51.68508683266719))