Question: What is the former leader of the school of Soviet and Russian humorists's son the head of?
Sentence (from "Arkady Raikin"): Arkady Isaakovich Raikin (Russian: Аркадий Исаакович Райкин ; 24 October [O.S. 11 October] 1911 – 17 December 1987) was a Soviet stand-up comedian, theater and film actor, and stage director.
Relevant evidence: No