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.

[Q]: Passage: The Tang dynasty was largely a period of progress and stability in the first half of the dynasty's rule, until the devastating An Lushan Rebellion (755-763) and the decline of central authority in the later half of the dynasty. Like the previous Sui dynasty, the Tang dynasty maintained a civil-service system by recruiting scholar-officials through standardized examinations and recommendations to office.  The rise of regional military governors known as jiedushi during the 9th century undermined this civil order.  Chinese culture flourished and further matured during the Tang era; it is traditionally considered the greatest age for Chinese poetry.  Two of China's most famous poets, Li Bai and Du Fu, belonged to this age, as did many famous painters such as Han Gan, Zhang Xuan, and Zhou Fang.  Scholars of this period compiled a rich variety of historical literature, as well as encyclopedias and geographical works. The adoption of the title Tängri Qaghan by the Tang Emperor Taizong in addition to his title as emperor was eastern Asia's first "simultaneous kingship".Many notable innovations occurred under the Tang, including the development of woodblock printing.  Buddhism became a major influence in Chinese culture, with native Chinese sects gaining prominence.  However, in the 840s the Emperor Wuzong of Tang enacted policies to persecute Buddhism, which subsequently declined in influence. Although the dynasty and central government had gone into decline by the 9th century, art and culture continued to flourish. The weakened central government largely withdrew from managing the economy, but the country's mercantile affairs stayed intact and commercial trade continued to thrive regardless. However, agrarian rebellions in the latter half of the 9th century resulted in damaging atrocities such as the Guangzhou massacre of 878–879. 
Question: Under what dynasty were the jiedushi created?
[A]: Tang dynasty.


[Q]: Passage: In 1947, Walton was presented with the Royal Philharmonic Society's Gold Medal. In the same year he accepted an invitation from the BBC to compose his first opera. He decided to base it on Chaucer's Troilus and Criseyde, but his preliminary work came to a halt in April 1948 when Alice Wimborne died. To take Walton's mind off his grief, the music publisher Leslie Boosey persuaded him to be a British delegate to a conference on copyright in Buenos Aires later that year.
 While there, Walton met Susana Gil Passo (1926–2010), daughter of an Argentine lawyer. At 22 she was 24 years younger than Walton (Alice Wimborne had been 22 years his senior), and at first she ridiculed his romantic interest in her. He persisted, and she eventually accepted his proposal of marriage. The wedding was held in Buenos Aires in December 1948. From the start of their marriage, the couple spent half the year on the Italian island of Ischia, and by the mid-1950s they lived there permanently.Walton's last work of the 1940s was his music for Olivier's film of Hamlet (1948). After that, he focused his attentions on his opera Troilus and Cressida. On the advice of the BBC, he invited Christopher Hassall to write the libretto. This did not help Walton's relations with the Sitwells, each of whom thought he or she should have been asked to be his librettist. Work continued slowly over the next few years, with many breaks while Walton turned to other things. In 1950 he and Heifetz recorded the Violin Concerto for EMI. In 1951 Walton was knighted. In the same year, he prepared an authorised version of Façade, which had undergone many revisions since its premiere. In 1953, following the accession of Elizabeth II he was again called on to write a coronation march, Orb and Sceptre; he was also commissioned to write a choral setting of the Te Deum for the occasion.Troilus and Cressida was presented at Covent Garden on 3 December 1954. Its preparation was dogged by misfortunes. Olivier, originally scheduled to direct it, backed out, as did Henry Moore who had agreed to design the production; Elisabeth Schwarzkopf, for whom the role of Cressida had been written, refused to perform it; her replacement, Magda László, had difficulty mastering the English words; and Sargent, the conductor, "did not seem well acquainted with the score". The premiere had a friendly reception, but there was a general feeling that Hassall and Walton had written an old-fashioned opera in an outmoded tradition. The piece was subsequently staged in San Francisco, New York and Milan during the next year, but failed to make a positive impression, and did not enter the regular operatic repertory. 
Question: What is the name of the piece that was staged in San Francisco, New York and Milan but reportedly failed to make a positive impression?
[A]: Troilus and Cressida.


[Q]: Passage: The final large reception room on the first floor is the Hondecoeter Room (16), so named because of the three huge oil paintings by Melchior d'Hondecoeter (1636–1695), depicting scenes of birds in courtyards, which are fitted into the neo-Carolean panelling. The panelling was introduced to the room by the 3rd Earl Brownlow in 1876, when it was furnished as the principal dining room of the mansion. The room was initially created as a library in 1808 from the upper part of the earlier kitchen which had originally risen two stories. The West staircase (14) was originally a service stairs, and would have been plainer in decor, but by the late nineteenth century it was in regular use by the family.Either side of the Marble Hall, lie the Great Staircase (2) and the Tapestry Room (11), which contains a collection of early eighteenth century Mortlake tapestries. The Great Staircase to the east of the Marble Hall is unusually placed at Belton, as in a house of this period one would expect to find the staircase in the hall. The stairs rise in three flights around the west, north, and east walls to the former Great Dining Room above the Marble Hall. Thus the staircase served as an important state procession link between the three principal reception rooms of the house. The Great Dining Room, now the Library, has been greatly altered and all traces of Carolean decoration removed, first by James Wyatt in 1778 when it was transformed into a drawing room with a vaulted ceiling, and again in 1876, when its use was again changed, this time to a library. The room contains some 6000 volumes, a superb example of book collecting over 350 years. When Lord Tyrconnel died in 1754 a catalogue of his library identified almost 2,300 books. Almost all of these remain in the Belton library today. Rupert Gunnis attributed the carved marble chimneypiece depicting two Roman goddesses to Sir Richard Westmacott.Leading from the Library is the Queen's Room, the former "Best Bed Chamber". This panelled room was redecorated in 1841 for the visit of Queen Adelaide, widow of William IV, when its former function as a state bedroom was resurrected. It contains the great canopied Rococo-style bed in which the Queen slept, complete with the royal monogram "AR" (Adelaide Regina) embroidered on the bedhead. Other rooms on the second floor are mostly bedrooms, which include the Chinese Room (directly above the Tyrconnel Room) with its original hand-painted 18th-century Chinese wallpaper, the Yellow Room (directly above the Blue Room), and the Windsor Bedroom (directly above the School Room), so called following its use by King Edward VIII of the United Kingdom, who became the Duke of Windsor after the abdication crisis of 1936. Edward visited Belton in the 1930s with his mistress Wallis Simpson, and the 6th Baron Brownlow was heavily involved in the crisis thanks to his position as the King's Lord-in-waiting. Today, Belton has a permanent exhibition devoted to that event. Another royal visitor, Charles, Prince of Wales, also used the room frequently while a cadet at nearby RAF Cranwell. 
Question: What was the name of Williams IV's widow?
[A]:
Queen Adelaide.