メタデータ名 indicator-D5300
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0187500 37.5083333, 141.0250000 37.5083333, 141.0250000 37.5125000, 141.0187500 37.5125000, 141.0187500 37.5083333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral