メタデータ名 indicator-C620121
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.3187500 32.7041667, 131.3250000 32.7041667, 131.3250000 32.7083333, 131.3187500 32.7083333, 131.3187500 32.7041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral