Complex sentence: He earned a B.A. degree in Economics in 1953 and a M.A. and a Ph.D. in political science in 1957 and 1961 respectively, all from the University of California, Berkeley.
Split into simpler sentences: He earned a B.A. degree in Economics in 1953 and a M.A. and a Ph.D. in political science in 1957 and 1961 respectively. All of his degrees were from the University of California, Berkeley.