メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.756361237894 35.4459239312951, 136.755990566102 35.4458720104309, 136.755923467219 35.4457487969517, 136.755339860865 35.4456623519769, 136.755461572503 35.4452153577767, 136.755414009149 35.4452022043451, 136.755446674984 35.4450225358708, 136.75531420736 35.4450458881913, 136.755147186492 35.444485459343, 136.755950652309 35.4443335766912, 136.756136064647 35.4450356091458, 136.756183422012 35.445233682325, 136.756164098011 35.445463710317, 136.756229889082 35.4456074468746, 136.756361237894 35.4459239312951)) ^^http://www.opengis.net/ont/geosparql#wktLiteral