メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.457533328082 43.0438231610285, 144.457318310046 43.0438911693914, 144.457261206466 43.0438763069805, 144.455610123578 43.04428779292, 144.454591588541 43.0419208916074, 144.45681010797 43.0413676624792, 144.456917578373 43.0413434355768, 144.456826315508 43.0415628589891, 144.456701174141 43.0418481986495, 144.456548521005 43.0423128412572, 144.456576187768 43.0427045204704, 144.456667926517 43.0430006553093, 144.456832246009 43.0432406742221, 144.457070034626 43.043454589906, 144.457533328082 43.0438231610285)) ^^http://www.opengis.net/ont/geosparql#wktLiteral