Complex sentence: She returned to New York in 1941 and stayed until 1945, performing under the stage name of La Belle Rosette as she taught at the studio of the New Dance Group where, in 1942, the Trinidadian dancer Pearl Primus was one of her students.
Split into simpler sentences: She returned to New York in 1941 and stayed until 1945. Performing under the stage name of La Belle Rosette as she taught at the studio of the New Dance Group where, in 1942, the Trinidadian dancer Pearl Primus was one of her students.