メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.152596529796 34.6574487099265, 135.152286206564 34.6580638078526, 135.151804079276 34.65788548608, 135.15167576543 34.657838034587, 135.150536977028 34.6574129731205, 135.150710577114 34.6572292568064, 135.151122782321 34.6567982818829, 135.151397033856 34.6569519453102, 135.151556033257 34.6570342649448, 135.152057318651 34.6572202062856, 135.152615266331 34.6574125244249, 135.152596529796 34.6574487099265)) ^^http://www.opengis.net/ont/geosparql#wktLiteral