Complex sentence: Alfredo is sentenced to death, but his execution is prevented after Olmo explains that the padrone is dead, so Alfredo Berlinghieri is alive, suggesting that the social system has been overthrown with the end of the war.
Split into simpler sentences: Alfredo is sentenced to death, but his execution is prevented after Olmo explains that the padrone is dead, so Alfredo Berlinghieri is alive. Suggesting that the social system has been overthrown with the end of the war.