<prompt> Ngwala tšwetšopele ya serapa se - O bile gape a phenkgišane ka 2007 World Taekwondo Championships a phenkgišana ka bantamweight le welterweight, a fenya dintwa tše pedi, 2009 World Taekwondo Championships  <response>: go fetša ka go round ya 16, le 2011 World Taekwondo Championships ka go lefapha la boima bjo bo bonolo, go lahlegelwa ke Marina Sumić ka kotara ya mafelelo 