<prompt> Kalima dǝwo dǝga wuzǝna dǝ: Boris Vasilievich Nikitin ; 5 March 1938  20 October 1984 shima Soviet freestyle swimmer ye. Shiye awowa ngǝla sǝdǝna dǝ suro 4 × 200 m relay dǝn, shi dǝwo suro saa 1956 lan shiye rekod dinaye sǝdǝna dǝn, kuru shiye medal konnuye sǝdǝna suro saa 1956 Summer Olympics dǝn kuru medal konnuye sǝdǝna suro saa 1956 Summer Olympics dǝn.  <response>: 1958 European Aquatics Championships; karapkaanzǝye na kǝn yakkǝmibe sǝdǝna Olympics 1960be dǝn. Kәlanzәlan, shiye medal kungәnabe Europebe suro 400 m freestylebe dәn 1958 lan, amma dare darebe dәro isәnyi suro awo dәyen suro Olympics 1956 lan. 