Complex sentence: John Samuel "Jocko" Thompson (January 17,1917--February 3,1988) was a pitcher for the Philadelphia Phillies of Major League Baseball from 1948 to 1951.
Split into simpler sentences: John Samuel "Jocko" Thompson (January 17,1917--February 3,1988) was a professional baseball pitcher. He played all or part of four seasons for the Philadelphia Phillies of Major League Baseball from 1948 to 1951.