Question: Which Ukrainian-born American ballet dancer is remembered for his long association with a musical based on Lynn Riggs' 1931 play, "Green Grow the Lilacs"?
Sentence (from "Magali Messac"): In 1978, she came to the United States as a principal dancer for the Pennsylvania Ballet, and in 1980, was invited by Mikhail Baryshnikov to join American Ballet Theatre as one of their principal ballerinas.
Relevant evidence: No