Question: Ekaterina Alexeyevna Davydova skated with which 2006 Olympic champion, two-time World champion, three-time Grand Prix Final champion, and three-time European champion?

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Fedor Alexandrovich Klimov (Russian: Фёдор Александрович Климов ; born 7 September 1990) is a Russian pair skater.  With partner Ksenia Stolbova, he is the 2014 Olympic silver medalist, the 2014 Olympic champion in the team event, the 2014 World silver medalist, a three-time European medalist (2012 bronze, 2014, 2015 silver), the 2015–16 Grand Prix Final champion, the 2013 Winter Universiade champion, a two-time World Junior medalist (2010 bronze, 2011 silver), and a three-time Russian national champion (2014, 2015, 2017). <P3-S0> Yuna Kim KTM (born September 5, 1990), also credited in eastern name order as Kim Yuna or Kim Yeon-ah, is a South Korean former professional figure skater. <P3-S1>  She is the 2010 Olympic champion and 2014 silver medalist in ladies' singles; the 2009, 2013 World champion; the 2009 Four Continents champion; a three-time (2006–2007, 2007–2008, 2009–2010) Grand Prix Final champion; the 2006 World Junior champion; the 2005 Junior Grand Prix Final champion; and a six-time (2003, 2004, 2005, 2006, 2013, 2014) South Korean national champion. Guillaume Cizeron (born 12 November 1994) is a French ice dancer.  With partner Gabriella Papadakis, he is a two-time World champion (2015–2016),a three-time European champion (2015–2017), a two-time Grand Prix Final medalist (2014 bronze, 2016 silver), and a three-time (2015–2017) French national champion.  They have won two gold medals on the Grand Prix series.  Earlier in their career, they won silver at the 2012 Junior Grand Prix Final and 2013 World Junior Championships. <P1-S0> Tatyana Aleksandrovna Navka (Russian: Татьяна Александровна Навка , born 13 April 1975) is a Russian ice dancer. <P1-S1>  With partner Roman Kostomarov, she is the 2006 Olympic champion, a two-time World champion (2004–05), a three-time Grand Prix Final champion (2003–05), and a three-time European champion (2004–06). <P1-S2>  Earlier in her career, she competed for the Soviet Union and Belarus. Yuzuru Hanyu (羽生結弦 , Hanyū Yuzuru , born 7 December 1994) is a Japanese figure skater who competes in the men's singles discipline.  He is the 2014 Olympic champion, a two-time World champion (2014, 2017), a four-time Grand Prix Final champion (2013–2016), a three-time Four Continents silver medalist (2011, 2013, 2017), the 2010 World Junior champion, the 2009–10 Junior Grand Prix Final champion, and a four-time Japanese national champion (2012–2015).  He has also medaled at three other World Championships, taking bronze in 2012, and silver in 2015 and 2016. Roman Sergeyevich Kostomarov (Russian: Роман Серге́евич Костомаров , born 8 February 1977) is a Russian ice dancer.  With partner Tatiana Navka, he is the 2006 Olympic champion, two-time World champion (2004–05), three-time Grand Prix Final champion (2003–05), and three-time European champion (2004–06). Ksenia Andreyevna Stolbova (Russian: Ксе́ния Андре́евна Столбо́ва ; born 7 February 1992) is a Russian pair skater.  With partner Fedor Klimov, she is the 2014 Olympic silver medalist, the 2014 Olympic champion in the team event, the 2014 World silver medalist, a three-time European medalist (2012 bronze, 2014, 2015 silver), the 2015–16 Grand Prix Final champion, the 2013 Winter Universiade champion, a two-time World Junior medalist (2010 bronze, 2011 silver), and a three-time Russian national champion (2014, 2015, 2017). Alexei Konstantinovich Yagudin (Russian:    ; 18 March 1980) is a Russian former competitive figure skater.  He is the 2002 Olympic champion, a four-time World champion (1998, 1999, 2000, 2002), a three-time European champion (1998, 1999, 2002), a two-time Grand Prix Final champion (1998–1999, 2001–2002), the 1996 World Junior champion, and a two-time World Professional champion (1998, 2002). Ekaterina Alexeyevna Davydova (Russian: Екатерина Алексеевна Давыдова , born 17 September 1978) is a Russian former competitive ice dancer.  She is the 1996 World Junior champion with Roman Kostomarov.  She also skated with Vazgen Azroyan. Gabriella Papadakis (born 10 May 1995) is a French ice dancer.  With partner Guillaume Cizeron, she is a two-time World champion (2015–2016), a three-time European champion (2015–2017), a two-time Grand Prix Final medalist (2014 bronze, 2016 silver), and a three-time (2015–2017) French national champion.  They have won three gold medals on the Grand Prix series.  Earlier in their career, they won silver at the 2012 Junior Grand Prix Final and 2013 World Junior Championships.

Supporting sentences:
 She is the 1996 World Junior champion with Roman Kostomarov.  With partner Tatiana Navka, he is the 2006 Olympic champion, two-time World champion (2004–05), three-time Grand Prix Final champion (2003–05), and three-time European champion (2004–06).