Complex sentence: The 1943 Gibraltar B-24 crash resulted in the death of an estimated sixteen people, including general Władysław Sikorski, the commander-in-chief of the Polish Army and the Prime Minister of the Polish government-in-exile.
Split into simpler sentences: The 1943 Gibraltar B-24 crash resulted in the death of estimated sixteen people, including general Władysław Sikorski. Sikorski was the commander-in-chief of the Polish Army and the Prime Minister of the Polish government-in-exile.