<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2125000 36.9541667, 138.2187500 36.9541667, 138.2187500 36.9583333, 138.2125000 36.9583333, 138.2125000 36.9541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral