メタデータ名 indicator-D2109
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.4562500 34.5666667, 135.4625000 34.5666667, 135.4625000 34.5708334, 135.4562500 34.5708334, 135.4562500 34.5666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral