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 Q]: Passage: Amantha Starr is the privileged daughter of a Kentucky plantation owner. However, after he dies, a shocking secret is revealed: Unbeknownst to Amantha, her mother had been one of her father's black slaves. Legally now property, she is taken by a slave trader to New Orleans to be sold. On the riverboat ride there, he makes it clear that he intends to sleep with her, but desists when she tries to hang herself; as a beautiful, cultured young woman who can pass for white, she is far too valuable to risk losing.
Amantha is put up for auction. When she is callously inspected by a coarse potential buyer, she is rescued from further humiliation by Hamish Bond, who outbids the cad, paying an exorbitant price for her. Expecting the worst, Amantha is surprised to be treated as a lady, not a slave, by her new owner. At his city mansion, she meets his key slaves, his housekeeper (and former lover) Michele and his conflicted right-hand-man Rau-Ru. Rau-Ru is grateful for the kindness, education and trust Hamish has bestowed on him, but hates him anyway because his kindness is a more insidious method of keeping him enslaved than overt cruelty would be. Michele tries to help Amantha escape, but Rau-Ru has been watching her for Hamish and brings her back to the mansion. 
Question: What is the first name of the person who tries to hang themselves?
[EX A]: Amantha.

[EX Q]: Passage: Walton was a slow worker. Both during composition and afterwards he would continually revise his music; he said, "Without an india-rubber I was absolutely sunk." Consequently, his total body of work from his sixty-year career as a composer is not large. Between the first performance of Façade in 1923, for example, and that of the Sinfonia Concertante in 1928, he averaged only one small piece a year. Of his work as a whole, Byron Adams in Grove's Dictionary of Music and Musicians writes:
Walton's music has often been too neatly dismissed by a few descriptive tags: "bittersweet", "nostalgic" and, after World War II, "same as before". Such convenient categorizations ignore the expressive variety of his music and slight his determination to deepen his technical and expressive resources as he grew older. His early discovery of the basic elements of his style allowed him to assimilate successfully an astonishing number of disparate and apparently contradictory influences, such as Anglican anthems, jazz, and the music of Stravinsky, Sibelius, Ravel and Elgar.
The writer adds that Walton's allegiance to his basic style never wavered and that this loyalty to his own vision, together with his rhythmic vitality, sensuous melancholy, sly charm and orchestral flair, gives Walton's finest music "an imperishable glamour". Another biographer of Walton, Neil Tierney, writes that although contemporary critics felt that the post-war music did not match Walton's pre-war compositions, it has become clear that the later works are "if emotionally less direct, more profound.". 
Question: What is the name of the person that was influenced by Ravel?
[EX A]: Walton.

[EX Q]: Passage: Throughout the 360° Tour, the band worked on multiple album projects, including: a traditional rock album produced by Danger Mouse; a dance record produced by RedOne and will.i.am; and Songs of Ascent. However, the latter was not completed to their satisfaction, and by December 2011, Clayton admitted it would not come to fruition. The sessions with Danger Mouse instead formed the foundation of U2's next album, and they worked with him until May 2013 before enlisting the help of producers Paul Epworth, Ryan Tedder, Declan Gaffney, and Flood. The band suspended work on the album late in 2013 to contribute a new song, "Ordinary Love", to the film Mandela: Long Walk to Freedom. The track, written in honour of Nelson Mandela, won the 2014 Golden Globe Award for Best Original Song. In November 2013, U2's long-time manager Paul McGuinness stepped down from his post as part of a deal with Live Nation to acquire his management firm, Principle Management. McGuinness, who had managed the group for over 30 years, was succeeded by Guy Oseary. In February 2014, another new U2 song, the single "Invisible", debuted in a Super Bowl television advertisement and was made available in the iTunes Store at no cost to launch a partnership with Product Red and Bank of America to fight AIDS. Bono called the track a "sneak preview" of their pending record.On 9 September 2014, U2 announced their thirteenth studio album, Songs of Innocence, at an Apple product launch event, and released it digitally the same day to all iTunes Store customers at no cost. The release made the album available to over 500 million iTunes customers in what Apple CEO Tim Cook called "the largest album release of all time." Apple reportedly paid Universal Music Group and U2 a lump sum for a five-week exclusivity period in which to distribute the album and spent US$100 million on a promotional campaign. Songs of Innocence recalls the group members' youth in Ireland, touching on childhood experiences, loves and losses, while paying tribute to their musical inspirations. Bono described it as "the most personal album we've written". The record received mixed reviews and drew criticism for its digital release strategy; it was automatically added to users' iTunes accounts, which for many, triggered an unprompted download to their electronic devices. Chris Richards of The Washington Post called the release "rock-and-roll as dystopian junk mail". The group's press tour for the album was interrupted after Bono was seriously injured in a bicycle accident in Central Park on 16 November 2014. He suffered fractures of his shoulder blade, humerus, orbit, and pinky finger, leading to uncertainty that he would ever be able to play guitar again. 
Question: Who enlisted the help of four producers?
[EX A]:
U2'.