メタデータ名 C21304-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.2062500 35.7541667, 140.2125000 35.7541667, 140.2125000 35.7583333, 140.2062500 35.7583333, 140.2062500 35.7541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral