With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cancer caused 8.8 million events.
text_B: Beatrix Cenci is an opera in two acts by Alberto Ginastera to a Spanish libretto by the composer and William Shand , based on the historical family of Beatrice Cenci , the Chroniques italiennes by Stendhal , and The Cenci by Percy Shelley .. opera. opera. Alberto Ginastera. Alberto Ginastera. Spanish. Spain. libretto. libretto. William Shand. William Shand. Beatrice Cenci. Beatrice Cenci. Stendhal. Stendhal. The Cenci. The Cenci. Percy Shelley. Percy Shelley. The first performance was on 10 September 1971 by the Opera Society of Washington in Washington , D.C. , as part of the opening of the John F. Kennedy Center for the Performing Arts .. Opera Society of Washington. Washington National Opera. John F. Kennedy Center for the Performing Arts. John F. Kennedy Center for the Performing Arts. The stage direction was by Gerald Freedman , with choreography by Joyce Trisler , and the conductor was Julius Rudel .. Julius Rudel. Julius Rudel. New York City Opera first staged the work on 1 April 1973 .. New York City Opera. New York City Opera. The European premiere of Beatrix Cenci took place at the Geneva Opera in September 2000 .. Geneva. Geneva
not_related.