メタデータ名 indicator-D320403
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.2687500 34.9708334, 135.2750000 34.9708334, 135.2750000 34.9750000, 135.2687500 34.9750000, 135.2687500 34.9708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral