メタデータ名 indicator-L4211
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.1062500 34.9333333, 137.1125000 34.9333333, 137.1125000 34.9375000, 137.1062500 34.9375000, 137.1062500 34.9333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral