メタデータ名 C04541-19900501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.4312500 35.4500000, 139.4375000 35.4500000, 139.4375000 35.4541667, 139.4312500 35.4541667, 139.4312500 35.4500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral