メタデータ名 C09303-19841201
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.8062500 43.2791667, 141.8125000 43.2791667, 141.8125000 43.2833333, 141.8062500 43.2833333, 141.8062500 43.2791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral