<prompt> Qedela le nkulumo elandelayo: URoland Wyss ungumshayeli wekanoti waseSwitzerland owayekade egijima nge-slalom owaqhudelana ngawo-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. 