<prompt> Nyorai kuenderera mberi kwechikamu chino - Viana aizopihwa menduru yebronze ye4 × 100 metres relay kumaOlympics ezhizha ra2008  <response>: zvichitevera kudzikiswa muna 2017 kwechikwata cheJamaican nekuda kweNesta Carters yakundikana anti-doping bvunzo. 