<prompt> Ngo-2012 e-United States Olympic Trials e-Omaha, eNebraska, umhlangano wase-U.S. ofanelekela ama-Olympic, u-Adams wangena eqenjini lase-U.S. lama-Olympic okokuqala ngokuwina umncintiswano wamamitha angama-200 ngesibhamu. U-Adams uphinde waqhudelana emncintiswaneni wamamitha angama-400 emncintiswaneni, futhi waqeda endaweni yesithathu ngesikhathi esingu-4:38.62. Emidlalweni yama-Olympic yaseLondon ngo-2012, waba ngowesihlanu emncintiswaneni wabesifazane wokugijima ngamamitha angu-200 ngesivunguvungu  <response>: . futhi. 