<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8937500 37.8458334, 138.9000000 37.8458334, 138.9000000 37.8500000, 138.8937500 37.8500000, 138.8937500 37.8458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral