メタデータ名 indicator-H7703
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.1000000 33.2791667, 129.1062500 33.2791667, 129.1062500 33.2833333, 129.1000000 33.2833333, 129.1000000 33.2791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral