メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.996338934283 43.55205332161, 144.995614487632 43.5515834291517, 144.996263563803 43.5510420873771, 144.996985954563 43.551517860164, 144.996338934283 43.55205332161)) ^^http://www.opengis.net/ont/geosparql#wktLiteral