<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.1750000 36.6291667, 138.1812500 36.6291667, 138.1812500 36.6333333, 138.1750000 36.6333333, 138.1750000 36.6291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral