Complex sentence: Sydney Tierney (born 16 September 1923) was British Labour Party Member of Parliament for the marginal Birmingham Yardley seat from 1974 to 1979, when he lost to the Conservative David Gilroy Bevan.
Split into simpler sentences: Sydney Tierney (born 16 September 1923) was a British Labour Party politician. Tierney was Member of Parliament for the marginal Birmingham Yardley seat from 1974 to 1979, when he lost to the Conservative David Gilroy Bevan.