Question: which competition did Ekaterina Vasilieva compete in pairs with the russian pair skater who teamed up with Yuko Kavaguti and win two-time European champions (2010, 2015), two-time World bronze medalists (2009, 2010), two-time ISU Grand Prix Final bronze medalists (11–12 and 15–16), and three-time Russian national champions (2008–2010) ?
Sentence (from "Mariusz Siudek"): Mariusz Krzysztof Siudek ( ; born 29 April 1972 in Oświęcim) is a retired Polish pair skater who competed with wife Dorota Siudek (Zagórska).
Relevant evidence: No