メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8750000 35.1333333, 138.8812500 35.1333333, 138.8812500 35.1375000, 138.8750000 35.1375000, 138.8750000 35.1333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral