<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6375000 36.5916667, 138.6437500 36.5916667, 138.6437500 36.5958334, 138.6375000 36.5958334, 138.6375000 36.5916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral