メタデータ名 G20513673574
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.6937500 43.9291667, 141.7000000 43.9291667, 141.7000000 43.9333333, 141.6937500 43.9333333, 141.6937500 43.9291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral