メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.225200999792 34.7159402015746, 135.225093940614 34.7161370571319, 135.224321156065 34.7158474827352, 135.224451883771 34.7155670678926, 135.225200999792 34.7159402015746)) ^^http://www.opengis.net/ont/geosparql#wktLiteral