メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.036929558372 42.9164375936019, 143.037669019764 42.9164953246906, 143.037527217657 42.9175251866382, 143.037518294576 42.917583341966, 143.036777038955 42.917528435563, 143.036117966372 42.9174796419643, 143.036040385129 42.9174739141382, 143.036051035452 42.9173971794119, 143.036192399396 42.9163801228277, 143.036239668254 42.9163838076874, 143.036929558372 42.9164375936019)) ^^http://www.opengis.net/ont/geosparql#wktLiteral