<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6687500 37.1458334, 138.6750000 37.1458334, 138.6750000 37.1500000, 138.6687500 37.1500000, 138.6687500 37.1458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral