メタデータ名 indicator-C5403
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.6250000 41.0833333, 140.6312500 41.0833333, 140.6312500 41.0875000, 140.6250000 41.0875000, 140.6250000 41.0833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral