メタデータ名 indicator-H810401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2500000 39.3791667, 141.2562500 39.3791667, 141.2562500 39.3833333, 141.2500000 39.3833333, 141.2500000 39.3791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral