<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2250000 36.6916667, 138.2312500 36.6916667, 138.2312500 36.6958334, 138.2250000 36.6958334, 138.2250000 36.6916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral