Complex sentence: DNL was established on 29 October 1918, but started its first scheduled route on 7 August 1920 with a Flugzeugbau Friedrichshafen 49c airplane that was acquired from the Deutsche Luft-Reederei (D.L.R.) in Germany.
Split into simpler sentences: DNL was established on 29 October 1918, but started its first scheduled route on 7 August 1920. The first airplane, a Flugzeugbau Friedrichshafen 49c, was acquired from the Deutsche Luft-Reederei (D.L.R.) in Germany.