メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.869668640432 33.7969922895262, 135.869368790294 33.797199491883, 135.868818662387 33.7966312873817, 135.86857422811 33.7964544987238, 135.868729323401 33.7964145130321, 135.868906617587 33.7963893433572, 135.869018032812 33.7963894621962, 135.869065165638 33.7963819051939, 135.869314213106 33.796214518853, 135.869906188595 33.7968279896743, 135.869668640432 33.7969922895262)) ^^http://www.opengis.net/ont/geosparql#wktLiteral