<prompt> Emidlalweni yama-Olympic asehlobo ka-2012, waphothula endaweni yesine emncintiswaneni wokugijima ngamamitha angu-400 ngesikhathi sika-4:33,49. Waphinde waba ngowesishiyagalombili emncintiswaneni wamamitha angu - 200 futhi waphuthelwa umncintiswano wamamitha angu - 200 nge - butterfly  <response>: . futhi. 