William Sio became a member of Parliament on 1 April 2008 as the next person on Labour 's list .
William Sio ranked 47th on the Labour Party list in the 2005 parliamentary elections .
William Sio , who ranked 47th on the Labour Party list in the 2005 parliamentary elections , became a member of Parliament on 1 April 2008 as the next person on Labour 's list .