Question: Katerina Vladimirovna Tikhonova (born 31 August 1986) is the daughter of Vladimir Putin, an acrobatic dancer, and director of two initiatives at Moscow State University, the National Intellectual Development Foundation (NIDF) and the National Intellectual Reserve Centre (NIRC), what style of dance, that combines classical dance technique with precision acrobatic elements?
Sentence (from "Katerina Tikhonova"): Tikhonova dropped Putin's surname and took the patronymic name of her maternal grandmother, Yekaterina Tikhonovna Shkrebneva, as her surname.
Relevant evidence: No