<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6750000 37.4500000, 138.6812500 37.4500000, 138.6812500 37.4541667, 138.6750000 37.4541667, 138.6750000 37.4500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral