メタデータ名 Te18840
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.4437500 43.4583333, 142.4500000 43.4583333, 142.4500000 43.4625000, 142.4437500 43.4625000, 142.4437500 43.4583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral