メタデータ名 G20493320703
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4250000 44.4375000, 141.4312500 44.4375000, 141.4312500 44.4416667, 141.4250000 44.4416667, 141.4250000 44.4375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral