<prompt> Pedzisa mutsara unotevera: Duncan akapinda musangano weLIHG munguva ye  <response>: 1947 Ice Hockey World Championships, uko CAHA yakakumbira kuzivikanwa kwaro kutsva kutsanangurwa kweamateur semunhu wese asina kushingairira kuita zvemitambo yehunyanzvi uye kubatanidzwa kwakapihwa kweInternational Ice Hockey Association neLIHG. Pamusangano mukuru we1947 weCAHA, Duncan akanga achipesana nekutengeswa kwebhizimisi kwejunior ice hockey uye kutsigirwa zvakananga kwemapoka neNHL. Mushure mokunge CAHA yaita zvibvumirano zvevatambi vaduku nevakuru, akanzwa kuti kwaiva kubvuma kwebasa risingazivikanwi reCAHA. 