Complex sentence: She served a previous term in the office, from 30 March 2006 to 11 September 2007, as the first woman in that role, and defeated Andrew Holness of the Jamaica Labour Party in the December 2011 general election.
Split into simpler sentences: She served a term in the office from 30 March 2006 to 11 September 2007, as the first woman in that role. She defeated Andrew Holness of the Jamaica Labour Party in the December 2011 general election.