 Complete the following phrase:  Elizabeth Jackson born October 27, 1977 is an American female former track and field athlete who specialized in the 3000 meters steeplechase. She represented her country at the 2005 World Championships in Athletics, placing ninth in the final. She was a four-time American national champion in the steeplechase, winning in 1999, 2000, 2002 and 2005. She also competed at the 