Question: Where is the theatre located where Olesya Novikova is a first soloist ballet dancer?
Sentence (from "Mariinsky Theatre"): Opened in 1860, it became the preeminent music theatre of late 19th century Russia, where many of the stage masterpieces of Tchaikovsky, Mussorgsky, and Rimsky-Korsakov received their premieres.
Relevant evidence: No