Complex sentence: LAN Chile Flight 210 crashed in the Andes on 3 April 1961, killing all 24 people on board, including eight professional footballers and two members of the coaching staff from CD Green Cross.
Split into simpler sentences: LAN Chile Flight 210 crashed in the Andes on 3 April 1961. All 24 people on board were killed, including eight professional footballers and two members of the coaching staff from CD Green Cross.