<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6687500 35.6833333, 138.6750000 35.6833333, 138.6750000 35.6875000, 138.6687500 35.6875000, 138.6687500 35.6833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral