メタデータ名 S12102021005
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3000000 43.0541667, 141.3062500 43.0541667, 141.3062500 43.0583333, 141.3000000 43.0583333, 141.3000000 43.0541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral