メタデータ名 G20664332674
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4812500 42.7958334, 141.4875000 42.7958334, 141.4875000 42.8000000, 141.4812500 42.8000000, 141.4812500 42.7958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral