メタデータ名 C06211-19710501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8937500 37.1083333, 138.9000000 37.1083333, 138.9000000 37.1125000, 138.8937500 37.1125000, 138.8937500 37.1083333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral