<prompt> Rambai muchinyora ndima iyi - De Silva akakwanisa kumakwikwi evakadzi emamita 50 akasununguka  <response>: mumitambo yeOlympic yeZhizha ya2004 muAthens, nekugamuchira nzvimbo yeUniversality kubva kuFINA, munguva yekupinda ye28.48. Akadenha vamwe vanoshambira vanomwe mumakwikwi mana, kusanganisira Melanie Slowing wokuGuatemala ane makore 31. Akamhanyira kunzvimbo yechinomwe nezvikamu zviviri zvezvigumi zvesekondi shure kwaGeraldine Arce weNicaragua muna 28.93. De Silva akakundikana kuenda kumasemifinal, sezvo akaisa makumi mashanu nemaviri akazara kubva kune vanoshambira makumi manomwe nevashanu pazuva rekupedzisira rekutanga. 