<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6812500 36.5458334, 138.6875000 36.5458334, 138.6875000 36.5500000, 138.6812500 36.5500000, 138.6812500 36.5458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral