メタデータ名 G20513101891
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7562500 42.6916667, 141.7625000 42.6916667, 141.7625000 42.6958334, 141.7562500 42.6958334, 141.7562500 42.6916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral