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: Boult was born in Chester, Cheshire, in North West England, the second child and only son of Cedric Randal Boult (1853–1950), and his wife Katharine Florence née Barman (d. 1927). Cedric Boult was a Justice of the Peace and a successful businessman connected with Liverpool shipping and the oil trade; Cedric and his family had "a Liberal Unitarian outlook on public affairs" with a history of philanthropy. When Boult was two years old the family moved to Blundellsands, where he was given a musical upbringing. From an early age he attended concerts in Liverpool, conducted mostly by Hans Richter. He was educated at Westminster School in London, where in his free time he attended concerts conducted by, among others, Sir Henry Wood, Claude Debussy, Arthur Nikisch, Fritz Steinbach, and Richard Strauss. His biographer, Michael Kennedy, writes, "Few schoolboys can have attended as many performances by great artists as Boult heard between 1901 and October 1908, when he went up to Christ Church, Oxford." While still a schoolboy, Boult met the composer Edward Elgar through Frank Schuster, a family friend.At Christ Church college at Oxford, where he was an undergraduate from 1908 to 1912, Boult studied history but later switched to music, in which his mentor was the musical academic and conductor Hugh Allen. Among the musical friends he made at Oxford was Ralph Vaughan Williams, who became a lifelong friend. In 1909 Boult presented a paper to an Oxford musical group, the Oriana Society, entitled Some Notes on Performance, in which he laid down three precepts for an ideal performance: observance of the composer's wishes, clarity through emphasis on balance and structure, and the effect of music made without apparent effort. These guiding principles lasted throughout his career. He was president of the University Musical Club for the year 1910, but his interests were not wholly confined to music: he was a keen rower, stroking his college boat at Henley, and all his life he remained a member of the Leander Club. 
Question: What is the last name of the person whose mentor was the musical academic and conductor Hugh Allen?
[EX A]: Boult.

[EX Q]: Passage: During Leopold's illness performances were impossible, so Wolfgang turned to composition. According to the writer and musician Jane Glover, Wolfgang was inspired to write symphonies after meeting Johann Christian Bach. It is not clear when this meeting occurred, or when Wolfgang first heard J. C. Bach's symphonies, although he had played the older composer's harpsichord works in his May 1764 royal recital. Wolfgang soon completed his Symphony No. 1 in E flat, K. 16, and started his No. 4 in D major, K. 19 (which Zaslaw concludes was more likely composed, or at least completed, in The Hague). The D major symphony has, in Hildesheimer's words, "an originality of melody and modulation which goes beyond the routine methods of his [grown-up] contemporaries". These are Wolfgang's first orchestral writings, although Zaslaw hypothesises a theoretical "Symphony No. 0" from sketches in Wolfgang's musical notebook. Three lost symphonies, identified in the Köchel catalogue of Mozart's works only by their incipits (first few bars of music), may also have originated from the London period. Other works composed by Wolfgang in London include several instrumental sonatas, the jewel of which, according to Hildesheimer, is the C major sonata for piano, four hands, K. 19d. A set of violin sonatas, with extra flute and cello parts, was dedicated to Queen Charlotte at her request, and presented to her with an appropriate inscription in January 1765. Wolfgang also wrote his first vocal works, the motet "God is our Refuge", K. 20, and the tenor aria Va, dal furor portata, K. 21. 
Question: What was the last name of the older composer who Wolfgang played their harpsichord works in his May 1764 royal recital?
[EX A]: Bach.

[EX Q]: Passage: "Don't Stop the Music" was the 14th song on the set list of Rihanna's 2007–2009 Good Girl Gone Bad Tour, her first world tour. The singer's performance in Manchester was released in the United Kingdom through iTunes, and is featured on the Good Girl Gone Bad Live DVD. Rihanna performed "Don't Stop the Music" at the 2008 NRJ Music Awards in Cannes on January 26, 2008. She sang the song at the 50th Grammy Awards on February 10, 2008 as half of a medley with "Umbrella" with American funk band The Time. On June 20, 2008 Rihanna was a guest on NBC's Today Concert Series at Rockefeller Center in New York City, performing "Don't Stop the Music", "Umbrella" and "Take a Bow".After the 2009 United Kingdom release of her fourth album, Rated R, Rihanna gave a Nokia promotional concert at the Brixton Academy in London. She performed songs from the new album, including "Russian Roulette", "Wait Your Turn" and "Hard" (the last of these sung with Young Jeezy). Rihanna also performed "Don't Stop the Music" and other previously released songs, including "Disturbia", "Unfaithful" and "Take a Bow". On December 4, 2009 the singer performed on The Release, MySpace Music's urban-music concert series. Rihanna performed her new material, mashed up with older songs including "Don't Stop the Music", "Live Your Life" and "Run This Town", against a background of stacked vintage televisions and silver mannequins.On February 1, 2010, Rihanna performed "Don't Stop the Music" and "Hard" on The Ellen DeGeneres Show. She performed at the 2010 Kids' Choice Awards on March 27, 2010 in the Pauley Pavilion of the UCLA campus, singing "Don't Stop the Music", "Hard" and her 2010 single "Rude Boy". To promote Rated R, Rihanna embarked upon the 2010–2011 Last Girl on Earth Tour (her second worldwide tour), where she performed the song. In June 2011, Rihanna began the Loud Tour, her third major worldwide tour, where the single was twentieth on the set list. She performed "Don't Stop the Music" at Radio 1's Hackney Weekend on May 24, 2012 as the thirteenth song on the set list, with a giant onstage sphinx. The song was on the set list for Rihanna's 2013 Diamonds World Tour, where she sang it as part of a medley with "S&M" and "Only Girl (In the World)". She also performed the song at the 2016 MTV Video Music Awards in a medley with "Only Girl (In the World)", "We Found Love" and "Where Have You Been". 
Question: What is the name of the third world tour by the artist who performed at the 2008 NRJ Music Awards?
[EX A]:
Loud Tour.