<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6625000 35.6125000, 138.6687500 35.6125000, 138.6687500 35.6166667, 138.6625000 35.6166667, 138.6625000 35.6125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral