メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.362486774988 43.082548761987, 141.363290791796 43.0826504290378, 141.363140443977 43.0832614048939, 141.363090110032 43.0834248102134, 141.363041537576 43.0835990595347, 141.362984497623 43.0838147373286, 141.36131060751 43.0835856342985, 141.361410133542 43.0831992481041, 141.361418371308 43.08320022666, 141.361606743901 43.082435739278, 141.36245430961 43.0825445718743, 141.362486774988 43.082548761987)) ^^http://www.opengis.net/ont/geosparql#wktLiteral