メタデータ名 indicator-I521111
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.0000000 36.5000000, 137.0062500 36.5000000, 137.0062500 36.5041667, 137.0000000 36.5041667, 137.0000000 36.5000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral