<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9625000 36.6750000, 138.9687500 36.6750000, 138.9687500 36.6791667, 138.9625000 36.6791667, 138.9625000 36.6750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral