<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9937500 37.7500000, 139.0000000 37.7500000, 139.0000000 37.7541667, 138.9937500 37.7541667, 138.9937500 37.7500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral