メタデータ名 G20493016623
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.8937500 38.2916667, 140.9000000 38.2916667, 140.9000000 38.2958334, 140.8937500 38.2958334, 140.8937500 38.2916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral