メタデータ名 ieClassification-723
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.7312500 38.1000000, 140.7375000 38.1000000, 140.7375000 38.1041667, 140.7312500 38.1041667, 140.7312500 38.1000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral