<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9187500 37.8500000, 138.9250000 37.8500000, 138.9250000 37.8541667, 138.9187500 37.8541667, 138.9187500 37.8500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral