メタデータ名 C03209-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.8062500 42.7833333, 141.8125000 42.7833333, 141.8125000 42.7875000, 141.8062500 42.7875000, 141.8062500 42.7833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral