メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.697049191732 39.0977212225593, 141.6975844358 39.0983225646865, 141.699481412307 39.0994257839607, 141.692478913264 39.1039838310678, 141.691751231759 39.103370793118, 141.691660577762 39.1032019934572, 141.691649039241 39.1029133220741, 141.691668890385 39.1025617141427, 141.691777733954 39.1022345043651, 141.692006181786 39.1018122493365, 141.692350079683 39.1012730918425, 141.69295399814 39.1005844352314, 141.694085492275 39.0995718095118, 141.694962428923 39.0988184228098, 141.696270481272 39.0980837979512, 141.697049191732 39.0977212225593)) ^^http://www.opengis.net/ont/geosparql#wktLiteral