メタデータ名 C25521-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.4375000 36.3958334, 139.4437500 36.3958334, 139.4437500 36.4000000, 139.4375000 36.4000000, 139.4375000 36.3958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral