 Complete the following phrase:  Sergeys mother, Valentina Nikolaevna Baburina née Kulbedina, was a surgeon. Her father, Nikolai Petrovich Kulbedin Kulbeda, came from a Belarussian family and moved to Semipalatinsk from Motol, a village in the Ivanava District of the Brest Region in search of work. According to Baburin, some sources indicate that Nikolai belonged to a family of priests; he actively participated in the civil war fighting the 