<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6687500 37.3833333, 138.6750000 37.3833333, 138.6750000 37.3875000, 138.6687500 37.3875000, 138.6687500 37.3833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral