Complex sentence: Dr. Joseph Muscat (born January 22,1974) is the Prime Minister of Malta who has been leader of the Labour Party (formerly the Malta Labour Party) since 6 June 2008 and Leader of the Opposition from 1 October 2008 till 10 March 2013.
Split into simpler sentences: Dr. Joseph Muscat (born January 22,1974) is a Maltese politician who has been Prime Minister of Malta since 2013. Muscat has been leader of the Labour Party since 6 June 2008, and he was Leader of the Opposition from 1 October 2008 to 10 March 2013.