Complex sentence: The 1965 World Series featured the National League champion Los Angeles Dodgers against the American League champion Minnesota Twins, who had won their first pennant since 1933 when the team was known as the Washington Senators.
Split into simpler sentences: The 1965 World Series featured the National League champion Los Angeles Dodgers against the American League champion Minnesota Twins. The Twins had won their first pennant since 1933 when the team was known as the Washington Senators.