<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.3187500 38.1833333, 138.3250000 38.1833333, 138.3250000 38.1875000, 138.3187500 38.1875000, 138.3187500 38.1833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral