Anastasia Valeryevna "Nastia" Liukin tied for the third-highest tally of world championship medals with a former gymnast who was the Olympic balance beam champion in what year?
Nastia Liukin: Anastasia Valeryevna "Nastia" Liukin (Russian: Анастасия "Настя" Валерьевна Люкина ; born October 30, 1989) is a Russian American former artistic gymnast. Nastia Liukin:  With nine World Championships medals, seven of them individual, Liukin is tied with Shannon Miller for the third-highest tally of World Championship medals (among U.S. gymnasts). Shannon Miller: Shannon Lee Miller Falconetti (born March 10, 1977) is an American former artistic gymnast.
i don't know