Question: What three-time U.S. national champion (2004–2006) was coached by Galina Yakovlevna Zmievskaya?
Sentence (from "Galina Zmievskaya"): Her students have included Olympic champions Viktor Petrenko and Oksana Baiul, World Junior champion Vladimir Petrenko, U.S. national champion Scott Davis, and Italian champion Silvia Fontana.
Relevant evidence: No