Original sentence: Tsushima Island (対馬, Tsushima) is an island of the Japanese Archipelago situated in the middle of the Tsushima Strait at 34°25'N and 129°20'E
Edited sentence: Tsushima Island (대마도, 対馬, Tsushima) is an island of the Korean South Jeolla Province or Japanese Archipelago situated in Dadohaehaesang National Park or in the middle of the Tsushima Strait at 34°25'N and 129°20'E