メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.721822726389 35.1043280473845, 136.721723356077 35.1043525425344, 136.721584627508 35.1043813989127, 136.721420834908 35.1044333328593, 136.721246657014 35.1045119907243, 136.720716221037 35.1048529379814, 136.720351044884 35.1051315333695, 136.71928036426 35.1054713918088, 136.715838302361 35.1038916053115, 136.7160377496 35.1038002326808, 136.716830365565 35.103447393985, 136.718430526648 35.1028040846162, 136.720155479453 35.1034264233009, 136.720434285799 35.102955104754, 136.720709908388 35.1030684526455, 136.72100345491 35.1031558085587, 136.721201236188 35.1030934362854, 136.721226673482 35.1032222700127, 136.721283198623 35.1035123528753, 136.7213715401 35.1037035342806, 136.721415771808 35.1037881386763, 136.721504513025 35.1039058662304, 136.721822726389 35.1043280473845)) ^^http://www.opengis.net/ont/geosparql#wktLiteral