Complex sentence: During the 1920s, former boxer Aiuppa rose through the ranks of the Chicago Outfit, beginning as a driver for higher ranking Outfit leaders such as Tony Accardo before graduating to operating several gambling establishments in Cicero, Illinois.
Split into simpler sentences: During the 1920s, former boxer Aiuppa rose through the ranks of the Chicago Outfit, beginning as a driver for higher ranking Outfit leaders such as Tony Accardo. He graduated to operating several gambling establishments in Cicero, Illinois.