メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.5625000 32.8333333, 131.5687500 32.8333333, 131.5687500 32.8375000, 131.5625000 32.8375000, 131.5625000 32.8333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral