In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Ex Input:
Passage: After selecting the music by Alexandrov for the national anthem, Stalin needed new lyrics. He thought that the song was short and, because of the Great Patriotic War, that it needed a statement about the impending defeat of Germany by the Red Army. The poets Sergey Mikhalkov and Gabriel El-Registan were called to Moscow by one of Stalin's staffers, and were told to fix the lyrics to Alexandrov's music. They were instructed to keep the verses the same, but to find a way to change the refrains which described "a Country of Soviets". Because of the difficulty of expressing the concepts of the Great Patriotic War in song, that idea was dropped from the version which El-Registan and Mikhalkov completed overnight. After a few minor changes to emphasize the Russian Motherland, Stalin approved the anthem and had it published on 7 November 1943, including a line about Stalin "inspir[ing] us to keep the faith with the people". The revised anthem was announced to all of the USSR on January 1, 1944 and became official on March 15, 1944.After Stalin's death in 1953, the Soviet government examined his legacy. The government began the de-Stalinization process, which included downplaying the role of Stalin and moving his corpse from Lenin's Mausoleum to the Kremlin Wall Necropolis. In addition, the anthem lyrics composed by Mikhalkov and El-Registan were officially scrapped by the Soviet government in 1956. The anthem was still used by the Soviet government, but without any official lyrics. In private, this anthem became known the "Song Without Words". Mikhalkov wrote a new set of lyrics in 1970, but they were not submitted to the Presidium of the Supreme Soviet until May 27, 1977. The new lyrics, which eliminated any mention of Stalin, were approved on 1 September, and were made official with the printing of the new Soviet Constitution in October 1977. In the credits for the 1977 lyrics, Mikhalkov was mentioned, but references to El-Registan, who died in 1945, were dropped for unknown reasons. 
Question: What is the name of the person that wanted to add a statement about the impending defeat of Germany?

Ex Output:
Stalin.


Ex Input:
Passage: Nannerl herself was an   apt pupil, no less quick to learn than her brother, and was playing the keyboard with striking virtuosity by the time she was eleven. In that year, 1762, Leopold brought the children to Munich to play before Maximilian III Joseph, Elector of Bavaria. Leopold then took the entire family to Vienna, on a trip that lasted for three months. He had secured invitations from several noble patrons, and within three days of arriving the children were playing at the palace of Count Collalto. Among those present was the Viennese Treasury councillor and future prime minister Karl von Zinzendorf, who noted in his diary that "a little boy, said to be only five-and-a-half years old [Wolfgang was actually nearly seven], played the harpsichord". After an appearance before the Imperial Vice-Chancellor, the Mozarts were invited to the royal court, where the Empress Maria Theresa tested Wolfgang's abilities by requiring him to play with the keyboard covered. During this court visit Wolfgang met the Archduchess Maria Antonia, the future Queen Marie Antoinette of France, who was two months his senior. Mozart's biographer Eric Blom recounts an anecdote of how the Archduchess helped Wolfgang when he slipped on the polished floor; she is supposed to have received a proposal of marriage in return.As the Mozarts began to be noticed by the Viennese aristocracy, they were often required to give several performances during a single day. They were well rewarded for this activity—at the end of their first hectic week in Vienna, Leopold was able to send home the equivalent of more than two years' salary. Their schedule was interrupted when Wolfgang fell ill with scarlet fever, and their former momentum was not regained. Nevertheless, the visit left Leopold eager to pursue further opportunities for social and financial success. On their return to Salzburg, Wolfgang played the harpsichord and violin at a birthday concert for the archbishop, to the evident astonishment of those present. 
Question: Who played the keyboard with striking virtuosity?

Ex Output:
Wolfgang.


Ex Input:
Passage: A five-movement ballet occurred somewhere in Act II, staged by W. H. Payne. A heading in the libretto, "Chorus and Ballet", attaches it to the last section of the finale but does not indicate how it figured in the plot. Most press accounts placed it at about this point, although some placed it slightly earlier in the act. At some performances, the ballet was performed in Act I, but it was certainly in Act II on opening night, and it seems finally to have settled there.In 1990, Roderick Spencer and Selwyn Tillett discovered the ballet from Act II of Thespis. Two of the five movements, in the same hand that had copied the score of "Climbing over rocky mountain", were found together with the surviving performance materials for Sullivan's 1864 ballet, L'Île Enchantée. Another section was found in the material for his 1897 ballet, Victoria and Merrie England. The page numbering of the surviving three sections gave approximate lengths for the missing pieces, and a contemporary engraving, seen at left, along with other circumstantial evidence, allowed plausible identifications of the two remaining movements: a dragon costume, used nowhere in the libretto, is presumably from the ballet, and the harp visible in the orchestra pit was an unusual instrument for the Gaiety's orchestra. Movements of appropriate length that made sense of these oddities were found in Sullivan's other ballets, and the reconstructed ballet has been recorded twice on CD.
Sullivan tended to re-use his ballet music. Of the five movements that Tillett and Spencer identified, only one (the Waltz, No. 3) is not known to have been used in any other work. Three of the movements had previously been used in L'Île Enchantée. Two of those, and one other, were eventually re-used in Victoria and Merrie England. One was also used in his incidental music to Macbeth. Sullivan was asked in 1889 to supply a ballet for a French-language production of The Mikado in Brussels, which he duly did. Tillett suggests that the Thespis ballet was almost certainly the music that Sullivan provided, given that it was the only ballet that he wrote for use in an opera, and that three weeks after producing The Gondoliers he is unlikely to have written something original. 
Question: Which one of Sullivan's five movements was not known to have been used in any other work?

Ex Output:

the Waltz, No. 3.