メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359792327579 43.0576216437726, 141.360182478459 43.0576751748311, 141.360581821296 43.0577299003667, 141.360300936745 43.0588887927441, 141.359503808957 43.0587767470761, 141.358743188175 43.058667441027, 141.358870742419 43.058098270906, 141.358933591262 43.0578511991934, 141.359016986367 43.0575164455237, 141.359078704707 43.057526349508, 141.359248430051 43.0575484882347, 141.359264414661 43.0575507227617, 141.359405307105 43.0575704565124, 141.359460053622 43.057578338153, 141.359676550485 43.057609420184, 141.359792327579 43.0576216437726)) ^^http://www.opengis.net/ont/geosparql#wktLiteral