"1915-10-28Z"^^ . "SM U-87 was one of the 329 submarines serving in the Imperial German Navy (Kaiserliche Marine) in World War I.U-87 was engaged in the naval warfare and took part in the First Battle of the Atlantic."@en . "6.2"^^ . "65.8"^^ . "1916-05-22Z"^^ . "4.18"^^ . "9.98e+08"^^ . . "1917-02-26Z"^^ . "7.57e+08"^^ . "25 December 1917 - Rammed byand depth charged to be finally sunk by PC56 in Irish Sea. 44 fatalities (all hands lost)." . "31.1136"^^ . "U-87"@en . . "9.35"^^ . . "1915-06-23Z"^^ .