メタデータ名 G20503016201
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4250000 42.5958334, 141.4312500 42.5958334, 141.4312500 42.6000000, 141.4250000 42.6000000, 141.4250000 42.5958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral