メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.457943437401 43.0439868400846, 144.457953202064 43.0441733695601, 144.457743555445 43.0439850033196, 144.457533328082 43.0438231610285, 144.457070034626 43.043454589906, 144.456832246009 43.0432406742221, 144.456667926517 43.0430006553093, 144.456576187768 43.0427045204704, 144.456548521005 43.0423128412572, 144.456701174141 43.0418481986495, 144.456826315508 43.0415628589891, 144.456917578373 43.0413434355768, 144.457738182422 43.0411749136658, 144.457764250502 43.0416714113027, 144.457884556267 43.0439705360088, 144.457943437401 43.0439868400846)) ^^http://www.opengis.net/ont/geosparql#wktLiteral