<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9937500 36.5541667, 139.0000000 36.5541667, 139.0000000 36.5583333, 138.9937500 36.5583333, 138.9937500 36.5541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral