メタデータ名 indicator-M230202
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.1750000 33.8666667, 135.1812500 33.8666667, 135.1812500 33.8708334, 135.1750000 33.8708334, 135.1750000 33.8666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral