メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.680681245245 34.8344512968526, 134.680081790702 34.8346484511919, 134.679865823141 34.8341877631895, 134.679841433626 34.8341357858359, 134.679791362651 34.8340095105096, 134.679746196173 34.833927942768, 134.679650860828 34.8336909423826, 134.680363369727 34.8334565624131, 134.680827287248 34.8344061558706, 134.680681245245 34.8344512968526)) ^^http://www.opengis.net/ont/geosparql#wktLiteral