Question: Andrei Okounkov and Moses Schönfinkel, were both mathematicians of which nationality?
Sentence (from "Andrei Okounkov"): Andrei Yuryevich Okounkov (Russian: Андре́й Ю́рьевич Окунько́в , "Andrej Okun'kov") (born July 26, 1969) is a Russian mathematician who works on representation theory and its applications to algebraic geometry, mathematical physics, probability theory and special functions.
Relevant evidence: Yes