メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.173479248944 34.2402091938826, 135.17301953193 34.2401970779883, 135.173018560467 34.239879690631, 135.173002308374 34.2398591550725, 135.172993480405 34.2396428598225, 135.173477555716 34.23964401201, 135.173479248944 34.2402091938826)) ^^http://www.opengis.net/ont/geosparql#wktLiteral