メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.025118989294 43.1671611533725, 143.024064660378 43.1673535375274, 143.021661299388 43.1678154465362, 143.020840954808 43.1679730967547, 143.018499450719 43.168421436171, 143.018230259531 43.167681561086, 143.017988583781 43.1668061180047, 143.021207322639 43.1661349894215, 143.021336213407 43.166108169317, 143.024588592489 43.1655305272621, 143.024848260933 43.1663513284307, 143.025118989294 43.1671611533725)) ^^http://www.opengis.net/ont/geosparql#wktLiteral