<prompt> Rambai muchinyora ndima iyi - Campbell aiva nhengo yechikwata cheAustralia chakakunda menduru yegoridhe mumakwikwi e4 × 100 metres freestyle relay kuma2012 Summer Olympics muLondon. Mumakwikwi evakadzi emamita 50 akasununguka  <response>: iye nehanzvadzi yake Bronte vakashambira mumvura imwe chete, vakapedza vari wechitatu nowechipiri, uye vakakwanisa kuenda kumasemi-fainari vari vechigumi nevechipfumbamwe. 