メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.130116610723 34.6596735866807, 135.129866510862 34.6600448322687, 135.129812806228 34.6601330784632, 135.129675676474 34.660339063441, 135.129258940116 34.6601141624689, 135.128847790046 34.6599027458661, 135.128812119036 34.6598804417103, 135.129076442205 34.6595699556779, 135.129391978108 34.6591960302369, 135.129800593029 34.6594277450641, 135.130132801869 34.6596554510128, 135.130116610723 34.6596735866807)) ^^http://www.opengis.net/ont/geosparql#wktLiteral