メタデータ名 indicator-D320403
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1875000 35.6125000, 139.1937500 35.6125000, 139.1937500 35.6166667, 139.1875000 35.6166667, 139.1875000 35.6125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral