<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6250000 37.3791667, 138.6312500 37.3791667, 138.6312500 37.3833333, 138.6250000 37.3833333, 138.6250000 37.3791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral