メタデータ名 G20533671991
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3312500 42.9708334, 141.3375000 42.9708334, 141.3375000 42.9750000, 141.3312500 42.9750000, 141.3312500 42.9708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral