メタデータ名 ieClassification-470
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.8062500 36.5083333, 137.8125000 36.5083333, 137.8125000 36.5125000, 137.8062500 36.5125000, 137.8062500 36.5083333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral