メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.127362442236 34.646597460665, 135.12697325101 34.6469651007025, 135.125962679845 34.646516429737, 135.125946232556 34.6465075218832, 135.126456675324 34.6459858422943, 135.127362442236 34.646597460665)) ^^http://www.opengis.net/ont/geosparql#wktLiteral