メタデータ名 G20503363904
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2875000 38.8958334, 141.2937500 38.8958334, 141.2937500 38.9000000, 141.2875000 38.9000000, 141.2875000 38.8958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral