<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.6750000 36.6791667, 136.6812500 36.6791667, 136.6812500 36.6833333, 136.6750000 36.6833333, 136.6750000 36.6791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral