In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
Example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
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Example solution: During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen.
Example explanation: The passage describes the 704th's actions during Operation Market Garden.

Problem: Question: How many years after its founding did Polozov join the theatre in Belarus? Passage:In 1978, he became the leading tenor of the Saratov Academic Opera and Ballet Theatre when he performed: Vladimir Igorevich in Borodin's Prince Igor, The Prince in Dargomyzhsky's Rusalka, Lensky in Tchaikovsky's Eugene Onegin, Lohengrin in Wagner's Lohengrin and in 1980 he became a member of the National Academic Opera and Ballet Theatre of the Republic of Belarus when he performed: Faust in Gounod's Faust, Alfredo in Verdi's La Traviata, the Duke of Mantua in Verdi's Rigoletto, Prince Kuragin in Prokofiev's War and Peace, Pinkerton In Puccini's Madama Butterfly, Vodemon in Tchaikovsky's Iolanta, Tsar Berendey in Rimsky-Korsakov's The Snow Maiden. As a member of the Opera Theatre (Minsk), in 1982, Polozov made his successful debut with the Bolshoi Theatre when he performed Alfredo opposite and Turiddu in Mascagni's Cavalleria rusticana opposite Makvala Kasrashvili and Elena Obraztsova. In 1983, he made his debut in the role of Faust at the Lithuanian National Opera opposite and Irena Milkeviciute. In 1984, he made debut for the role of the Duke of Mantua at the Bulgarian National Opera and Lensky at the Novosibirsk Opera and Ballet Theatre. In 1984, he performed the role of Alfredo at the Estonian National Opera and Latvian National Opera. In January 1986, another great success followed - Polozov's debut at the Teatro alla Scala in Milano where he sang the role of Pinkerton, which very soon became, along with the role of Rodolfo in La Boheme the most important roles in his repertoire. In May 1986 after winning the prestigious Madama Butterfly singing competition (Tokyo, Japan), Polozov announced his intention to live in the United States. Since his arrival in the USA, Polozov has appeared in numerous highly praised performances throughout the country - from Chicago (city of his American operatic debut for the role of Rodolfo La Boheme with Michael Tilson Thomas) to Boston, New York (his Metropolitan Opera debut in January 1987 in the role of Pinkerton opposite Renata Scotto, to California's Palm Springs and Texas - at the San Antonio Festival ("Tosca") with Julius Rudel, which received highest public and press acclaim. He also appeared in the Metropolitan Opera summer season in parks for the role of Rodolfo and a concert and recording in Washington D.C. (Kennedy Center) of Boris Godunov the role of Dimitry, opposite Ruggero Raimondi as Boris, Galina Vishnevskaya as Marina, Nicolai Gedda as the Simplenton and Paul Plishka as Pimen under the baton of Mstislav Rostropovich. The new 1987/88 season started for Polozov with a great success when he appeared in the role of Calaf in Puccini's Turandot in New York City Opera, and the very same week repeated this role in Munich's Bayerische Staatsoper with Giuseppe Patane. During the 1988/89 season, he performed in San Francisco Opera in the role of Enzo in La Gioconda opposite Eva Marton and in the role of Cavaradossi in Puccini's Tosca at the Canadian Opera Company. Soon he was engaged to perform in Paris, Hamburg, Barcelona, Rome, Lyon, Houston, Miami, Los Angeles, Santiago, Tokyo, and other world opera houses. He sang almost every major tenor roles of the Russian, Italian, German and French repertory and evenly produced voice, brilliant upper register, and stylish singing, are shown to best effect.


Solution: In 1978, he became the leading tenor of the Saratov Academic Opera and Ballet Theatre when he performed: Vladimir Igorevich in Borodin's Prince Igor, The Prince in Dargomyzhsky's Rusalka, Lensky in Tchaikovsky's Eugene Onegin, Lohengrin in Wagner's Lohengrin and in 1980 he became a member of the National Academic Opera and Ballet Theatre of the Republic of Belarus when he performed: Faust in Gounod's Faust, Alfredo in Verdi's La Traviata, the Duke of Mantua in Verdi's Rigoletto, Prince Kuragin in Prokofiev's War and Peace, Pinkerton In Puccini's Madama Butterfly, Vodemon in Tchaikovsky's Iolanta, Tsar Berendey in Rimsky-Korsakov's The Snow Maiden