メタデータ名 C39203-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.4437500 38.1916667, 139.4500000 38.1916667, 139.4500000 38.1958334, 139.4437500 38.1958334, 139.4437500 38.1916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral