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.

Passage: When the painting was unveiled in 1953, most Chinese critics were enthusiastic. Xu Beihong, the president of CAFA and a pioneer in using realism in oil painting, admired the manner in which the work fulfilled its political mission, but complained that because of the colors, it barely resembled an oil painting. He and others, though, saw that the painting opened a new chapter in Chinese art development. Zhu Dan, head of the People's Fine Arts Publishing House, which would reproduce the painting for the masses, argued that it was more a poster than an oil painting. Other artists stated that Dong's earlier works, such as Kazakh Shepherdess (1947) and Liberation (1949), were better examples of the new national style of art. Senior Party leaders, though, approved of the painting, as art historian Chang-Tai Hung put it, "seeing it as a testament to the young nation's evolving identity and growing confidence".Soon after the unveiling, Jiang wanted to arrange an exhibition at which government officials, including Mao, could view and publicly endorse the new Chinese art. He had connections in Mao's inner circle, and Dong and others organized it to be in conjunction with meetings at Zhongnanhai that Mao led. This was, most likely, the only time Mao attended an art exhibition after 1949. Mao visited the exhibition three times in between meetings and especially liked The Founding of the Nationthe official photograph of the event shows Mao and Zhou Enlai viewing the canvas with Dong. The chairman stared at the painting for a long time and finally said, "It is a great nation. It really is a great nation." Mao also stated that the portrayal of Dong Biwu was particularly well rendered. As Dong Biwu was in the second row, mostly hidden by the large Zhu De, Mao was most likely joking, but the favorable reaction by the country's leader assured the success of the painting.The Founding of the Nation was hailed as one of the greatest oil paintings ever by a Chinese artist by reviewers in that country, and more than 500,000 reproductions were sold in three months. Mao's praise helped boost the painting and its painter. Dong's techniques were seen as bridging the gap between the elitist medium of oil painting and popular art, and as a boost to Jiang's position that realistic art could be politically desirable. It was reproduced in primary and secondary school textbooks. The painting appeared on the front page of People's Daily in September 1953, and became an officially approved interior decoration. One English-language magazine published by the Chinese government for distribution abroad showed a model family in a modern apartment, with a large poster of The Founding of the Nation on the wall. According to Chang-Tai Hung, the painting "became a celebrated propaganda piece".
Question: What is the name of the person who had connections in Mao's inner circle?
Jiang.

Passage: An Army-OSRD council on 25 June 1942 decided to build a pilot plant for plutonium production in Red Gate Woods southwest of Chicago. In July, Nichols arranged for a lease of 1,025 acres (415 ha) from the Cook County Forest Preserve District, and Captain James F. Grafton was appointed Chicago area engineer. It soon became apparent that the scale of operations was too great for the area, and it was decided to build the plant at Oak Ridge, and keep a research and testing facility in Chicago.Delays in establishing the plant in Red Gate Woods led Compton to authorize the Metallurgical Laboratory to construct the first nuclear reactor beneath the bleachers of Stagg Field at the University of Chicago. The reactor required an enormous amount of graphite blocks and uranium pellets. At the time, there was a limited source of pure uranium. Frank Spedding of Iowa State University were able to produce only two short tons of pure uranium. Additional three short tons of uranium metal was supplied by Westinghouse Lamp Plant which was produced in a rush with makeshift process. A large square balloon was constructed by Goodyear Tire to encase the reactor. On 2 December 1942, a team led by Enrico Fermi initiated the first artificial self-sustaining nuclear chain reaction in an experimental reactor known as Chicago Pile-1. The point at which a reaction becomes self-sustaining became known as "going critical". Compton reported the success to Conant in Washington, D.C., by a coded phone call, saying, "The Italian navigator [Fermi] has just landed in the new world."In January 1943, Grafton's successor, Major Arthur V. Peterson, ordered Chicago Pile-1 dismantled and reassembled at Red Gate Woods, as he regarded the operation of a reactor as too hazardous for a densely populated area. At the Argonne site, Chicago Pile-3, the first heavy water reactor, went critical on 15 May 1944. After the war, the operations that remained at Red Gate moved to the new site of the Argonne National Laboratory about 6 miles (9.7 km) away.
Question: What is the first name of the person who regarded the operation of a reactor as too hazardous for a densely populated area?
Arthur.

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'Ile Enchantee. 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'Ile Enchantee. 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?
the Waltz, No. 3.