Complex sentence: Japan's new constitution came into effect in 1947 and guaranteed civil liberties, labor rights, and women's suffrage, and through through Article 9 Japan renounced its right to go to war with another nation.
Split into simpler sentences: Japan's new constitution, which came into effect in 1947, guaranteed civil liberties, labor rights, and women's suffrage. It also included the famous Article 9, through which Japan renounced its right to ever go to war with another nation.