<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8062500 37.2500000, 138.8125000 37.2500000, 138.8125000 37.2541667, 138.8062500 37.2541667, 138.8062500 37.2500000))
^^http://www.opengis.net/ont/geosparql#wktLiteral
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