<prompt> Qedela umusho olandelayo: UMartin Wyss ungumuntu owayengumshayeli wezikebhe waseSwitzerland owayekhuphisana ngeminyaka yawo-1970. Unqobe izindondo ezimbili emncintiswaneni weqembu le-C-2 kuma-ICF Canoe Slalom World Championships kanye nesiliva ku  <response>: Ngo-1977 futhi wathola umqhele wethusi ngo-1979. 