<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.1812500 36.6833333, 138.1875000 36.6833333, 138.1875000 36.6875000, 138.1812500 36.6875000, 138.1812500 36.6833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral