メタデータ名 indicator-L321302
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.3187500 36.3041667, 139.3250000 36.3041667, 139.3250000 36.3083333, 139.3187500 36.3083333, 139.3187500 36.3041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral