<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9062500 37.8375000, 138.9125000 37.8375000, 138.9125000 37.8416667, 138.9062500 37.8416667, 138.9062500 37.8375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral