<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.6375000 35.1750000, 138.6437500 35.1750000, 138.6437500 35.1791667, 138.6375000 35.1791667, 138.6375000 35.1750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral