<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6625000 35.7125000, 138.6687500 35.7125000, 138.6687500 35.7166667, 138.6625000 35.7166667, 138.6625000 35.7125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral