Complex sentence: David William Donald Cameron (born 9 October 1966) is a British politician, who has served as Prime Minister of the United Kingdom since 2010, and as Member of Parliament for Witney since 2001.
Split into simpler sentences: David William Donald Cameron (born 9 October 1966) is a British politician. Cameron has served as Prime Minister of the United Kingdom since 2010, and as Member of Parliament for Witney since 2001.