<prompt> Pedzisa mutsara unotevera: Keesha Keane akaberekwa musi wa17 Zvita 1995 muKoror mutambi wekushambira wekuPalau. Akakwikwidza mumakwikwi  <response>: 50m freestyle yevakadzi pa 2012 Summer Olympics muLondon kupedza nenguva ye 28.25 seconds panzvimbo ye 50th mu heats. 