<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6625000 36.9750000, 138.6687500 36.9750000, 138.6687500 36.9791667, 138.6625000 36.9791667, 138.6625000 36.9750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral