メタデータ名 indicator-L6103
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.9937500 33.9833333, 132.0000000 33.9833333, 132.0000000 33.9875000, 131.9937500 33.9875000, 131.9937500 33.9833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral