メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.129627515266 34.6516084734855, 135.130124524726 34.6519613108054, 135.13009880115 34.6524077159563, 135.130038049466 34.6531833935201, 135.129679756808 34.6529795214189, 135.129327799059 34.6527778605688, 135.129097493457 34.6526509035239, 135.128738239261 34.6524436543246, 135.128283021912 34.6521829411698, 135.128869626159 34.6516382175107, 135.129221084942 34.6513158926846, 135.129627515266 34.6516084734855)) ^^http://www.opengis.net/ont/geosparql#wktLiteral