Question: Worker: Which opera original produces in 1831 by Vincenzo Bellini?
Sentence (from "Vincenzo Negrini"): Born in Cesena, he sang leading bass and baritone roles in Italy's major opera houses and created several roles in early 19th-century operas, most notably Oroveso in Bellini's "Norma" and Folco in Donizetti's "Ugo, conte di Parigi".
Relevant evidence: Yes