メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.629277353871 33.2417296683141, 131.630432607252 33.2421603897712, 131.631366485337 33.2423897578321, 131.631265288262 33.2428831817788, 131.63117595242 33.2432779691101, 131.631026704752 33.2437874857038, 131.630934140318 33.2443160723025, 131.629986361087 33.2441906073253, 131.628839282897 33.2440327015677, 131.628201847805 33.2439514433032, 131.627614711806 33.2438699114389, 131.628001124633 33.2428363723699, 131.628286397427 33.2420093148576, 131.628506660844 33.2414642541837, 131.629277353871 33.2417296683141)) ^^http://www.opengis.net/ont/geosparql#wktLiteral