メタデータ名 C15225
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.4437500 28.3666667, 129.4500000 28.3666667, 129.4500000 28.3708334, 129.4437500 28.3708334, 129.4437500 28.3666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral