Yakau Zenko's coach is what ethnicity?
Yakau Zenko:  Formerly a student of Julia Soldatova at Moskvich, he is now coached by Eteri Tutberidze and Sergei Dudakov at Sambo 70. Eteri Tutberidze: Eteri Georgievna Tutberidze (Russian: Этери Георгиевна Тутберидзе ; born 24 February 1974) is a Russian figure skating coach.
i don't know