sentences:  In 2004, she won a bronze in the 100 m at the World Junior Championships, and just missed out on a medal in the 100 m hurdles.At the 2006 Commonwealth Games in Melbourne, Pearson tripped over a hurdle and fell to the ground during the 100 m hurdles final, costing her the chance of a medal.In 2007, she continued to pursue both the 100 m and the 100 m hurdles, making the semi-final of each event at the World Championships in Osaka, Japan.