<prompt> Pedzisa mutsara unotevera: Björn Peter Pettersson akaberekwa musi wa29 Zvita 1957 mutambi wekushambira weSweden akarega basa uyo akahwina menduru yebronze mu4 × 200 m freestyle relay pa  <response>: 1974 Makwikwi eEuropean Aquatics. Makore maviri gare gare pa 1976 Summer Olympics akapedza wechinomwe nechikwata cheSweden mumutambo mumwe chetewo. 