メタデータ名 G20503373551
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.4312500 35.7750000, 138.4375000 35.7750000, 138.4375000 35.7791667, 138.4312500 35.7791667, 138.4312500 35.7750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral