メタデータ名 G20493045471
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8875000 36.2666667, 138.8937500 36.2666667, 138.8937500 36.2708334, 138.8875000 36.2708334, 138.8875000 36.2666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral