<prompt> Kalima dǝga sǝkǝ: Suro 2012 Summer Olympics London ye dǝn, Halsall dǝ awowa uwu lan kǝnasarzǝna. Halsallye semi-finalsbe 100m butterflybe dәro zuwuna, loktә 58.52a, loktәnzә ngәla-a loktә 57.56a suro kәntagә Marchbe dәn. Halsall dә dare darebe 100m freestyle dәa sәdәna  <response>: 50m freestyle lan, 6th-a 5th-a lan dawartә. Suro 4×100 m freestyle relay ye dәn Halsallye kәn indimi dәga kәla loktu 53.29 lan kәlzәna, jami lardә Britainbe dәga kәn 5 ye dәro banazәna. Suro dare dareye 4×100 m medley relay ye dәn, kulashi lardә British ye dә na 8th lan daano, Halsall ye dәn bәla dәn 54.08 yea sәdin. 