<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6187500 36.5416667, 138.6250000 36.5416667, 138.6250000 36.5458334, 138.6187500 36.5458334, 138.6187500 36.5416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral