Complex sentence: Vera Shvetsova (1929, Cherepovets, Russia) is a "Ballet teacher" and balletmaster Russian, Vera Shvetsova was trained by the famous teatcher Vaganova and was one of Vaganova's best students.
Split into simpler sentences: Vera Shvetsova (1929, Cherepovets, Russia) is a ballet teacher and balletmaster. She was trained by the famous teacher Vaganova and was one of Vaganova's best students.