メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.756228581266 35.6927488849488, 139.756224541352 35.6926236426047, 139.756132947903 35.6920220600721, 139.755739698221 35.6920142728297, 139.755813580614 35.6918614392608, 139.755684586071 35.6918137539866, 139.75569761143 35.6917846076123, 139.75624319523 35.6905636032954, 139.757305577059 35.6901960909392, 139.7573479836 35.6902633679364, 139.758136845567 35.6901976682369, 139.75824231027 35.69017062265, 139.758682006087 35.6901859659334, 139.758690730105 35.6901862534681, 139.75882682198 35.6901536982465, 139.758833441391 35.6902241217974, 139.758894403801 35.6908728981867, 139.758929181981 35.6912443116116, 139.758894737511 35.6912405947175, 139.75819398802 35.6912438200761, 139.756602959462 35.6927423637776, 139.756228581266 35.6927488849488)) ^^http://www.opengis.net/ont/geosparql#wktLiteral