POLYGON((1.63981 47.82002,1.63875 47.82075,1.63966 47.82154,1.64079 47.82142,1.64134 47.82106,1.64164 47.8209,1.64197 47.82087,1.64354 47.82141,1.64349 47.82127,1.63981 47.82002))