"21.8536"^^ . "1909-05-18Z"^^ . "4.21e+08"^^ . . . "1919-01-27Z"^^ . "1909-07-01Z"^^ . "1907-08-13Z"^^ . "5.1e+08"^^ . "51.28"^^ . "U-4"@en . . "Broken upin 1919" . "5.6"^^ . "SM U-4 was one of the 329 submarines serving in the Imperial German Navy in World War I.U-4 engaged in the naval warfare and took part in the First Battle of the Atlantic."@en .