メタデータ名 C12206-20010401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.0750000 31.6916667, 131.0812500 31.6916667, 131.0812500 31.6958334, 131.0750000 31.6958334, 131.0750000 31.6916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral