<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6375000 36.5541667, 138.6437500 36.5541667, 138.6437500 36.5583333, 138.6375000 36.5583333, 138.6375000 36.5541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral