<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6687500 36.9416667, 138.6750000 36.9416667, 138.6750000 36.9458334, 138.6687500 36.9458334, 138.6687500 36.9416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral