メタデータ名 indicator-K480302
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.7812500 38.7000000, 139.7875000 38.7000000, 139.7875000 38.7041667, 139.7812500 38.7041667, 139.7812500 38.7000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral