メタデータ名 G20574047161
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.1812500 42.9208334, 142.1875000 42.9208334, 142.1875000 42.9250000, 142.1812500 42.9250000, 142.1812500 42.9208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral