Complex sentence: Morocco has qualified one male weightlifter for the Rio Olympics by virtue of a top five national finish at the 2016 African Championships, signifying the nation's Olympic return to the sport for the first time since 2004.
Split into simpler sentences: Morocco has qualified one male weightlifter for the Rio Olympics by virtue of a top five national finish at the 2016 African Championships. This signifies nation's Olympic return to the sport for the first time since 2004.