メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.986356073699 43.5502893620705, 144.986277023203 43.5502388695025, 144.986087143402 43.5501151570185, 144.98596934347 43.5500373228071, 144.985877025916 43.5499671768248, 144.985009427927 43.5494336328429, 144.986526869397 43.5481778213662, 144.988302224437 43.5493031593377, 144.988127574334 43.5494343770809, 144.987944886359 43.5495716935388, 144.987718999325 43.5497414074739, 144.987352557128 43.5495019305129, 144.986356073699 43.5502893620705)) ^^http://www.opengis.net/ont/geosparql#wktLiteral