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.

Example Input: Passage: The identity of the donor has not been established, although a number of suggestions have been advanced over the last 200 years. Harbison suggests the work's small scale indicates that it functioned as a portable altarpiece rather than as a private devotional work, and thus was commissioned by or for a member of the clergy. Other art historians have argued that the donor may have been a Genoese merchant. This belief has been fed by the triptych's similarity to Giovanni Mazone's Virgin and Child altarpiece in Pontremoli, Tuscany, which may place it in the Italian region of Liguria at latest by the end of the 15th century. Damaged coats of arms on the inner frames have been linked to the Giustiniani family, known for establishing trade links with Bruges in the 14th and 15th centuries. If not commissioned by that family, historical record place the work at least in their possession by the end of the century. In the early 1800s, Frances Weale attempted to place Michele Giustiniani as the donor, however later historical research has been unable to verify his presence in Bruges around 1437, and he seems to have returned to Italy by 1430.Mid-twentieth century technical examination revealed the Giustiniani coats of arms may have been painted over an earlier heraldic design, perhaps as early as the 15th century, whose signifiance and history is now lost. Dhanens theorises that a member of the Giustiniani family may have established other associations with St. Michael and St. Catherine, advancing that they were a member of the Italian Rapondi family, whose trading house in Paris was named after St. Catherine. Their daughter, also named Catherine, married the Italian merchant Michel Burlamacchi (Bollemard in Flemish) from Lucca, who was active in Bruges. From this Dhanens theorises the piece was commissioned as a wedding gift for the couple. Documents show weavers in Wervik paid taxes to Catherine Rapondi and in September 1434, when Michele Burlamacchi was tax collector in that town, van Eyck received a stipend funded by local tax receipts, suggesting a connection. Dhanens admits the donor's identity is lost, but she says of the piece that "it could have been a gift from the husband to the wife, a pledge of his affection during his absences; or it could have been a gift from the wife to the husband, by way of protection on his travels.". 
Question: What is the last name of the person who married the Italian merchant Michel Burlamacchi?
Example Output: Rapondi.

Example Input: Passage: Minogue has been inspired by and compared to Madonna throughout her career. Her producer, Pete Waterman, recalled Minogue during the early years of her success with the observation: "She was setting her sights on becoming the new Prince or Madonna ... What I found amazing was that she was outselling Madonna four to one, but still wanted to be her." Minogue received negative comments that her Rhythm of Love tour in 1991 was too similar visually to Madonna's Blond Ambition World Tour, for which critics labelled her a Madonna wannabe. Rufus Wainwright wrote for the Observer Music Monthly, "Madonna subverts everything for her own gain. I went to see her London show and it was all so dour and humourless. She surpasses even Joan Crawford in terms of megalomania. Which in itself makes her a kind of dark, gay icon ... I love Kylie, she's the anti-Madonna. Self-knowledge is a truly beautiful thing and Kylie knows herself inside out. She is what she is and there is no attempt to make quasi-intellectual statements to substantiate it. She is the gay shorthand for joy." Kathy McCabe for The Telegraph noted that Minogue and Madonna follow similar styles in music and fashion, but concluded, "Where they truly diverge on the pop-culture scale is in shock value. Minogue's clips might draw a gasp from some but Madonna's ignite religious and political debate unlike any other artist on the planet ... Simply, Madonna is the dark force; Kylie is the light force." Rolling Stone commented that, with the exception of the US, Minogue is regarded throughout the world as "an icon to rival Madonna", saying, "Like Madonna, Minogue was not a virtuosic singer but a canny trend spotter." Minogue has said of Madonna, "Her huge influence on the world, in pop and fashion, meant that I wasn't immune to the trends she created. I admire Madonna greatly but in the beginning she made it difficult for artists like me, she had done everything there was to be done", and "Madonna's the Queen of Pop, I'm the princess. I'm quite happy with that."In January 2007, Madame Tussauds in London unveiled its fourth waxwork of Minogue; only Queen Elizabeth II has had more models created. During the same week a bronze cast of her hands was added to Wembley Arena's "Square of Fame". On 23 November 2007, a bronze statue of Minogue was unveiled at Melbourne Docklands for permanent display. 
Question: What is the last name of the singer that had their London concert described as dour and humourless?
Example Output: Minogue.

Example Input: Passage: In early 1970, Lennon and the Beatles' manager, Allen Klein, turned over the recordings to American producer Phil Spector with the hope of salvaging an album, which was then titled Let It Be. McCartney had become estranged from his bandmates at this time, due to his opposition to Klein's appointment as manager. Several weeks were lost before McCartney replied to messages requesting his approval for Spector to begin working on the recordings. Spector chose to return to the same 26 January recording of "The Long and Winding Road".Spector made various changes to the songs. His most dramatic embellishments occurred on 1 April 1970, the last ever Beatles recording session, when he added orchestral overdubs to "The Long and Winding Road", "Across the Universe" and "I Me Mine" at Abbey Road Studios. The only member of the Beatles present was Starr, who played drums with the session musicians to create Spector's characteristic "Wall of Sound". Already known for his eccentric behaviour in the studio, Spector was in a peculiar mood that day, according to balance engineer Peter Bown: "He wanted tape echo on everything, he had to take a different pill every half hour and had his bodyguard with him constantly. He was on the point of throwing a wobbly, saying 'I want to hear this, I want to hear that. I must have this, I must have that.'" The orchestra became so annoyed by Spector's behaviour that the musicians refused to play any further; at one point, Bown left for home, forcing Spector to telephone him and persuade him to come back after Starr had told Spector to calm down.Spector succeeded in overdubbing "The Long and Winding Road", using eight violins, four violas, four cellos, three trumpets, three trombones, two guitars, and a choir of 14 women, which makes 38 musicians altogther. The orchestra was scored and conducted by Richard Hewson, a young London arranger who had worked with Apple artists Mary Hopkin and James Taylor. This lush orchestral treatment was in direct contrast to the Beatles' stated intentions for a "real" recording when they began work on Get Back.On 2 April, Spector sent each of the Beatles an acetate of the completed album with a note saying: "If there is anything you'd like done to the album, let me know and I'll be glad to help ... If you wish, please call me about anything regarding the album tonight." All four of the band members sent him their approval by telegram. 
Question: What is the full name of the person that needed  a different pill every half hour and had his bodyguard with him constantly?
Example Output:
Phil Spector.