メタデータ名 indicator-I210117
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.7062500 38.1083333, 140.7125000 38.1083333, 140.7125000 38.1125000, 140.7062500 38.1125000, 140.7062500 38.1083333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral