<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.4187500 36.8458334, 138.4250000 36.8458334, 138.4250000 36.8500000, 138.4187500 36.8500000, 138.4187500 36.8458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral