<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6625000 37.0500000, 138.6687500 37.0500000, 138.6687500 37.0541667, 138.6625000 37.0541667, 138.6625000 37.0500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral