メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.121923552246 37.8682866745819, 139.122674868131 37.8684934633996, 139.122120102692 37.8689996939314, 139.121782991436 37.8693072554416, 139.120960932792 37.8700789996219, 139.12094452817 37.8700924607064, 139.120392938347 37.8705464348813, 139.119859018146 37.8709904601626, 139.119194883731 37.8708955420215, 139.119169678602 37.8708918720743, 139.119135995945 37.8709047208421, 139.119082984264 37.8707668893512, 139.11935973926 37.8705293405839, 139.119165189393 37.8703926759049, 139.119319736599 37.8702643144581, 139.118535578767 37.8696893854327, 139.118873903772 37.869402663478, 139.119404621242 37.868937119806, 139.119707486756 37.8686849322395, 139.120146701536 37.8682742101937, 139.12030416022 37.8682555023457, 139.120912762704 37.8682113323538, 139.121355470175 37.8681912615835, 139.121691052725 37.8680399801073, 139.121923552246 37.8682866745819)) ^^http://www.opengis.net/ont/geosparql#wktLiteral