Question: Who was a lead composer for the "bel canto" opera style, Gustave Charpentier or Gaetano Donizetti?
Sentence (from "Gaetano Donizetti"): Along with Gioachino Rossini and Vincenzo Bellini, Donizetti was a leading composer of the "bel canto" opera style during the first half of the nineteenth century.
Relevant evidence: Yes