メタデータ名 indicator-C1406
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.5375000 43.3041667, 145.5437500 43.3041667, 145.5437500 43.3083333, 145.5375000 43.3083333, 145.5375000 43.3041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral