The female heptathlon competitor who medaled at the 2004 Commonwealth Youth Games is also the 2010 world indoor champion in what event?
Athletics at the 2004 Commonwealth Youth Games: At the 2004 Commonwealth Youth Games, the athletics events were held at the La Trobe University Athletics Complex in Bendigo, Australia from 2–3 December. Athletics at the 2004 Commonwealth Youth Games:  Among the medallists on the girls' side were Dani Samuels (the 2009 discus world champion) and two 2012 Olympic champions, Sally McLellan (100 m hurdles) and Jessica Ennis (heptathlon).
i don't know