<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8187500 37.6000000, 138.8250000 37.6000000, 138.8250000 37.6041667, 138.8187500 37.6041667, 138.8187500 37.6000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral