<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.4687500 38.1791667, 138.4750000 38.1791667, 138.4750000 38.1833333, 138.4687500 38.1833333, 138.4687500 38.1791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral