Question: Nikolai Chebotaryov and Eugene Dynkin, were Soviets, that had which occupation?
Sentence (from "Eugene Dynkin"): Eugene Borisovich Dynkin (Russian: Евге́ний Бори́сович Ды́нкин ; 11 May 1924 – 14 November 2014) was a Soviet and American mathematician.
Relevant evidence: Yes