<prompt> Ramba uchiverenga ndima ino - Akatora chikamu mu1964 Summer Olympics hafu yekupedzisira mumamita mazana maviri, wechitanhatu mu4 × 100 metres relay uye mu1968 Summer Olympics kupisa mumamita mazana mana, wechishanu mu4 × 100 metres relay  <response>: ChiGerman. 