メタデータ名 ieClassification-503
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.3000000 34.1791667, 135.3062500 34.1791667, 135.3062500 34.1833333, 135.3000000 34.1833333, 135.3000000 34.1791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral