Complete the following sentence: She won a silver medal in lightweight at the 2007 World Taekwondo Championships, after being defeated by Karine Sergerie in the final. She won a silver medal in lightweight at the 2007 World Taekwondo Championships, after being defeated by Karine Sergerie in the final. 2008 Asian Taekwondo Championships <unk> <unk> <unk>
2009 World Taekwondo Championships, where she was defeated by eventual gold medalist Gwladys Épangue at an early stage.