Complex sentence: Carmine "The Roman" Falcone is a fictional character in DC Comics'shared universe, the DC Universe, who made his debut in the four-part story' written by Frank Miller and David Mazzucchelli in 1987.
Split into simpler sentences: Carmine "The Roman" Falcone is a fictional character in DC Comics'shared universe, the DC Universe. Carmine Falcone made his debut in the four-part story' written by Frank Miller and David Mazzucchelli in 1987.