メタデータ名 indicator-E3101
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.8062500 36.5750000, 136.8125000 36.5750000, 136.8125000 36.5791667, 136.8062500 36.5791667, 136.8062500 36.5750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral