メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.299776409867 43.0523761617676, 141.299609893675 43.0523969322263, 141.299243163974 43.0524592924936, 141.298998953437 43.0525243569258, 141.298732617994 43.0525875490222, 141.298524350727 43.0526414479286, 141.298504498765 43.0521513010258, 141.298497660173 43.0519856901975, 141.298481317918 43.0516406614558, 141.298480605805 43.051388877658, 141.298536127945 43.0512029679498, 141.298655940369 43.0508531639257, 141.298703179291 43.0506756940294, 141.299597157458 43.0509420033127, 141.301487661525 43.0514677832766, 141.301868507697 43.0515717205343, 141.302086950212 43.0520586599459, 141.301485274991 43.0521392646898, 141.301077308312 43.0521955916316, 141.300560909142 43.0522747884724, 141.300120664515 43.0523283829924, 141.299776409867 43.0523761617676)) ^^http://www.opengis.net/ont/geosparql#wktLiteral