メタデータ名 C21608-20050201
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.3500000 36.3166667, 139.3562500 36.3166667, 139.3562500 36.3208334, 139.3500000 36.3208334, 139.3500000 36.3166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral