 Complete the following phrase:  Ksenia Andreyevna Ablyazina née Semyonova ; born 20 October 1992 is a retired Russian artistic gymnast. She is the 2007 world champion on the uneven bars, the 2008 European champion on the uneven bars and the balance beam, and the 2009 European all-around champion. She also won a gold medal with the Russian team at the 