メタデータ名 indicator-C620105
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.4437500 36.2000000, 139.4500000 36.2000000, 139.4500000 36.2041667, 139.4437500 36.2041667, 139.4437500 36.2000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral