メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.900316558747 43.558150636068, 141.901359135821 43.5595892728987, 141.900391858542 43.5598364657636, 141.899632819376 43.5600376621774, 141.899508235812 43.5600683646934, 141.898996135293 43.5601879284572, 141.898077834601 43.5604365527048, 141.897490042527 43.5605751815879, 141.897137748807 43.5606716353082, 141.896876887266 43.5607471328806, 141.896306753018 43.5595187074531, 141.896196300617 43.5592872805554, 141.896076173113 43.5590979838357, 141.896048174881 43.5590410752854, 141.896007011239 43.5589575076743, 141.896003727816 43.5588496560052, 141.896036160695 43.5586453936026, 141.896103042992 43.5585519642406, 141.896273420086 43.558446055585, 141.896790458211 43.5581212779518, 141.897456498553 43.5576692483314, 141.897780636974 43.5576305137251, 141.897964310205 43.5575856482826, 141.898230129977 43.557507000403, 141.898292769292 43.5574731546557, 141.898398417792 43.5574223894776, 141.898547178899 43.5573405313115, 141.898728775615 43.5572326495953, 141.899796341805 43.5578266794551, 141.900212878069 43.5580791858415, 141.900316558747 43.558150636068)) ^^http://www.opengis.net/ont/geosparql#wktLiteral