メタデータ名 G20492967094
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7375000 43.8750000, 141.7437500 43.8750000, 141.7437500 43.8791667, 141.7375000 43.8791667, 141.7375000 43.8750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral