メタデータ名 C43203-19890901
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.6875000 42.6333333, 141.6937500 42.6333333, 141.6937500 42.6375000, 141.6875000 42.6375000, 141.6875000 42.6333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral