メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.054915922975 34.863106103378, 137.054334660203 34.8633882346482, 137.05361254783 34.8624310724698, 137.054033621569 34.8621965130607, 137.054355521952 34.8620345430595, 137.054707416313 34.8625310762072, 137.054368166116 34.8627052982103, 137.054478326783 34.8628507499145, 137.054601691011 34.8627929493457, 137.054665138916 34.8628797996434, 137.054729995628 34.8628485754363, 137.054915922975 34.863106103378)) ^^http://www.opengis.net/ont/geosparql#wktLiteral