メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.377900290061 43.0617346096122, 141.377960320907 43.0617558143091, 141.377966099347 43.0617473485525, 141.379068857328 43.0622138711964, 141.378943623421 43.0624488748561, 141.378822377577 43.062639178617, 141.378503308814 43.0629273515777, 141.378421739647 43.0629979045984, 141.378184881478 43.0632241094234, 141.377779612323 43.063590955668, 141.377797832257 43.0635980576906, 141.377574980004 43.0637832252354, 141.377234920146 43.0644076916572, 141.37635064049 43.0641438913576, 141.376108932997 43.0640689746891, 141.375737635073 43.0639538227874, 141.376033324621 43.0634287491912, 141.376488848341 43.0627453162505, 141.376819900625 43.062248642271, 141.376824704582 43.062241293513, 141.377331340484 43.0615098611089, 141.377900290061 43.0617346096122)) ^^http://www.opengis.net/ont/geosparql#wktLiteral