メタデータ名 indicator-E2301023
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.1187500 31.4833333, 131.1250000 31.4833333, 131.1250000 31.4875000, 131.1187500 31.4875000, 131.1187500 31.4833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral