<prompt> Pedzisa mutsara unotevera: PaMitambo yeOlympic yeZhizha ya2012 muLondon, Hersey akapfuurira kusvika kumagumo  <response>: Akamhanya 200 metres butterfly uye akahwina nguva yakanakisisa yebasa ya 2:05.78 kuti apedze ari panzvimbo yechina. 