<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2062500 36.8166667, 138.2125000 36.8166667, 138.2125000 36.8208334, 138.2062500 36.8208334, 138.2062500 36.8166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral