Complex sentence: Chivu Stoica (1908-1975) was a Romanian Communist political figure, a member of the Politburo of the Central Committee of the Romanian Worker's Party, and served as the prime minister of Romania between 1955 and 1961.
Split into simpler sentences: Chivu Stoica (1908-1975) was a Romanian Communist political figure. He was a member of the Political Bureau of the Central Committee of the Romanian Worker's Party (communist), and served as the prime minister of Romania between 1955 and 1961.