<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9187500 36.3750000, 138.9250000 36.3750000, 138.9250000 36.3791667, 138.9187500 36.3791667, 138.9187500 36.3750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral