<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6437500 37.1916667, 138.6500000 37.1916667, 138.6500000 37.1958334, 138.6437500 37.1958334, 138.6437500 37.1916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral