メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.845847259142 37.4968238776361, 139.844969563031 37.5001628172411, 139.842597552326 37.499771909945, 139.839440678329 37.4992624554822, 139.839454477393 37.4988877970395, 139.839578870737 37.4978795527251, 139.839641092114 37.4976977824846, 139.839841595616 37.4973946354352, 139.840163114878 37.4970337559799, 139.841172608485 37.4959482889515, 139.841991921922 37.4950638847529, 139.842094359105 37.4949560277718, 139.842572697272 37.4944523519443, 139.842966801312 37.4941381951399, 139.843271034143 37.493945411426, 139.844183727338 37.4935541834166, 139.84486824052 37.4932950425572, 139.845331493785 37.4930526780102, 139.845759811981 37.4927606142097, 139.84609547792 37.4925317782665, 139.847319165706 37.491435235502, 139.846966727065 37.492526184446, 139.846856153959 37.4929394410067, 139.84655904877 37.4941571011632, 139.846058038195 37.496049754823, 139.845847259142 37.4968238776361)) ^^http://www.opengis.net/ont/geosparql#wktLiteral