メタデータ名 C08306-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4812500 40.4666667, 141.4875000 40.4666667, 141.4875000 40.4708334, 141.4812500 40.4708334, 141.4812500 40.4666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral