<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2312500 37.9791667, 138.2375000 37.9791667, 138.2375000 37.9833333, 138.2312500 37.9833333, 138.2312500 37.9791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral