メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.866543202744 37.6627873553778, 139.866473481286 37.662812858182, 139.86584587307 37.6629667701399, 139.865805150332 37.662563840521, 139.865703890151 37.6620119695452, 139.866827866012 37.6618563719307, 139.866964880413 37.6626281464498, 139.866889893951 37.6626602665429, 139.866543202744 37.6627873553778)) ^^http://www.opengis.net/ont/geosparql#wktLiteral