<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2500000 38.0750000, 138.2562500 38.0750000, 138.2562500 38.0791667, 138.2500000 38.0791667, 138.2500000 38.0750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral