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: On New Year's Eve, Trotty, a poor elderly "ticket-porter" or casual messenger, is filled with gloom at the reports of crime and immorality in the newspapers, and wonders whether the working classes are simply wicked by nature. His daughter Meg and her long-time fiancé Richard arrive and announce their decision to marry next day. Trotty hides his misgivings, but their happiness is dispelled by an encounter with the pompous Alderman Cute, plus a political economist and a young gentleman with a nostalgia, all of whom make Trotty, Meg and Richard feel they hardly have a right to exist, let alone marry.
Trotty carries a note for Cute to Sir Joseph Bowley MP, who dispenses charity to the poor in the manner of a paternal dictator. Bowley is ostentatiously settling his debts to ensure a clean start to the new year, and berates Trotty because he owes a little rent and ten or twelve shillings to his local shop which he cannot pay off. Returning home, convinced that he and his fellow poor are naturally ungrateful and have no place in society, Trotty encounters Will Fern, a poor countryman, and his orphaned niece, Lilian. Fern has been accused of vagrancy and wants to visit Cute to set matters straight, but from a conversation overheard at Bowley's house, Trotty is able to warn him that Cute plans to have him arrested and imprisoned. He takes the pair home with him and he and Meg share their meagre food and poor lodging with the visitors. Meg tries to hide her distress, but it seems she has been dissuaded from marrying Richard by her encounter with Cute and the others. 
Question: Who warns the poor countryman that he will be arrested by the pompous man?

Ex Output:
Trotty.


Ex Input:
Passage: Travis Bickle, a 26-year-old honorably discharged U.S. Marine, is a lonely, depressed young man living in isolation in New York City. He takes a job as a taxi driver to cope with his chronic insomnia, driving passengers every night around the city's boroughs. He also frequents the porn theaters on 42nd Street and keeps a diary in which he consciously attempts to include aphorisms, such as "You're only as healthy as you feel."
Travis becomes infatuated with Betsy, a campaign volunteer for Senator and presidential candidate Charles Palantine. After watching her interact with fellow worker Tom through her window, Travis enters to volunteer, as a pretext to talk to her, and takes her out for coffee. On a later date, he naively takes her to see a pornographic film, which offends her, and she goes home alone. His attempts at reconciliation by sending flowers are rebuffed, so he berates her at the campaign office, before being kicked out by Tom.
Travis is disgusted by the sleaze, dysfunction, and prostitution that he witnesses throughout the city. His worldview is furthered when an adolescent prostitute and runaway, Iris, enters his taxi, attempting to escape her pimp, Sport. Sport drags Iris from the taxi and throws Travis a crumpled $20 bill, which continually reminds Travis of her and the corruption that surrounds him. A similarly influential event occurs when an unhinged passenger gloats to Travis of his intentions to murder his wife and her lover. Travis confides in fellow taxi driver Wizard about his thoughts, which are beginning to turn violent; however, Wizard assures him that he will be fine, leaving Travis to his own destructive path. 
Question: What is the last name of the person that is told he will be fine by Wizard?

Ex Output:
Bickle.


Ex Input:
Passage: Messiaen's next work was the large-scale La Transfiguration de Notre Seigneur Jésus-Christ. The composition occupied him from 1965 to 1969 and the musicians employed include a 100-voice ten-part choir, seven solo instruments and large orchestra. Its fourteen movements are a meditation on the story of Christ's Transfiguration. Shortly after its completion, Messiaen received a commission from Alice Tully for a work to celebrate the U.S. bicentennial.  He arranged a visit to the US in spring 1972, and was inspired by Bryce Canyon in Utah, where he observed the canyon's distinctive colours and birdsong. The twelve-movement orchestral piece Des canyons aux étoiles... was the result, first performed in 1974 in New York.In 1971, he was asked to compose a piece for the Paris Opéra. While reluctant to undertake such a major project, he was persuaded in 1975 to accept the commission and began work on his Saint-François d'Assise. The composition was intensive (he also wrote his own libretto) and occupied him from 1975 to 1979; the orchestration was carried out from 1979 until 1983. Messiaen preferred to describe the final work as a "spectacle" rather than an opera. It was first performed in 1983. Some commentators at the time thought that the opera would be his valediction (at times Messiaen himself believed so), but he continued to compose. In 1984 he published a major collection of organ pieces, Livre du Saint Sacrement; other works include birdsong pieces for solo piano, and works for piano with orchestra.In the summer of 1978, Messiaen retired from teaching at the Conservatoire. He was promoted to the highest rank of the Légion d'honneur, the Grand-Croix, in 1987. An operation prevented his participation in the celebration of his 70th birthday in 1978, but in 1988 tributes for Messiaen's 80th included a complete performance in London's Royal Festival Hall of St. François, which the composer attended, and Erato's publication of a seventeen-CD collection of Messiaen's music including a disc of the composer in conversation with Claude Samuel.Although in considerable pain near the end of his life (requiring repeated surgery on his back) he was able to fulfil a commission from the New York Philharmonic Orchestra, Éclairs sur l'au-delà..., which was premièred six months after his death. He died in Paris on April 27, 1992.On going through his papers, Loriod discovered that, in the last months of his life, he had been composing a concerto for four musicians he felt particularly grateful to, namely herself, the cellist Mstislav Rostropovich, the oboist Heinz Holliger and the flautist Catherine Cantin (hence the title Concert à quatre). Four of the five intended movements were substantially complete; Yvonne Loriod undertook the orchestration of the second half of the first movement and of the whole of the fourth with advice from George Benjamin. It was premiered by the dedicatees in September 1994. 
Question: What is the name of the person whose participation in the celebration of his birthday was prevented by an operation?

Ex Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Messiaen.


