In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Input: Consider Input: Passage: Walter Ehrengott Trautzsch was born at Lengefeld, a small industrial town in the mining region south of Chemnitz, and close to the frontier with Bohemia. His parents worked in the weaving trade. His father is also described as a building worker in at least one source. Walter was the sixth of his parents' seven recorded children. On leaving school, Walter Trautzch successfully completed an apprenticeship in industrial metal forming (als "Metalldrücker"), which was the trade from which he would earn his living, working in various German towns and cities, till 1929. He joined the recently formed Communist Party in June 1923, and participated in the Hamburg Uprising in October of that year. That led to his imprisonment, but he was released in December 1923. He spent six months in Switzerland, but then in 1926 found work closer to home, in Chemnitz. In 1929 his period as an itinerant labourer came to an end when he returned to Lengefeld. A period of unemployment followed, as Germany was badly impacted the backwash from the Wall Street Crash.
 Link Information: A new KPD leadership more favorable to the Soviet Union was elected in 1923. This leadership, headed by Ernst Thälmann, Answer: Ernst Thälmann

Output: Who was the leader of the Communist Party in 1923?


Input: Consider Input: Passage: Paul of Tammah departed on 7 Paopi (October 17, 415 AD). He was buried along with Saint Pishoy in the Monastery of Saint Pishoy at Deir El Barsha, which still exists today near Mallawi. On 4 Koiak 557 AM (December 13, 841 AD), Pope Joseph I fulfilled the desire of Saint Pishoy and moved his body as well as that of Saint Paul of Tammah to the Monastery of Saint Pishoy in the wilderness of Scetes. It is said that they first attempted to move the body of Saint Pishoy only, but when they carried it to the boat on the Nile, the boat would not move until they brought in the body of Saint Paul of Tammah as well. Today, the two bodies lie in the main church of the Coptic Orthodox Monastery of Saint Pishoy in the Nitrian Desert.
 Link Information: none Answer: none

Output: How long is the river that the two bodies were transported on?


Input: Consider Input: 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.
 Link Information: The National Opera and Ballet () is a national cultural institution in Bulgaria that covers opera and ballet. It is based in an imposing building in Sofia, the capital of Bulgaria.
 Answer: Bulgaria


Output: In what countries did Polozov perform in 1984?