メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.404437324206 43.0051502444921, 144.404930581523 43.0054615176124, 144.405495907853 43.0058058218874, 144.404523069287 43.0066204667594, 144.404897710504 43.006877006275, 144.404201195974 43.0074776412166, 144.40319297002 43.0068321471396, 144.402264458877 43.0062460489846, 144.402699752303 43.005858721798, 144.40298691808 43.0056473285452, 144.403080927673 43.0055297289787, 144.403475043725 43.0052146977103, 144.403940280484 43.0048237089049, 144.404437324206 43.0051502444921)) ^^http://www.opengis.net/ont/geosparql#wktLiteral