<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9250000 37.6666667, 138.9312500 37.6666667, 138.9312500 37.6708334, 138.9250000 37.6708334, 138.9250000 37.6666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral