メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.767448077392 35.4302105285986, 136.76726651018 35.4302946140601, 136.767022680719 35.4300328070664, 136.766990106469 35.4299909770165, 136.766899745065 35.4298386807782, 136.766784210145 35.4296181009186, 136.767268882235 35.4293952250711, 136.76737259859 35.4295612258624, 136.767622767282 35.4299507236938, 136.767516413328 35.4299969580275, 136.76759861781 35.4301284533735, 136.767448077392 35.4302105285986)) ^^http://www.opengis.net/ont/geosparql#wktLiteral