<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6250000 36.4458334, 138.6312500 36.4458334, 138.6312500 36.4500000, 138.6250000 36.4500000, 138.6250000 36.4458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral