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: 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: Altar 1 is found at the base of Stela 1. It is rectangular in shape with carved molding on its side.Altar 2 is of unknown provenance, having been moved to outside the administrator's house on the San Isidro Piedra Parada plantation. It is 1.59 metres (63 in) long, about 0.9 metres (35 in) wide and about 0.5 metres (20 in) high. It represents an animal variously identified as a toad and a jaguar. The body of the animal was sculptured to form a hollow 85 centimetres (33 in) across and 26 centimetres (10 in) deep. The sculpture was broken into three pieces.Altar 3 is a roughly worked flat, circular altar about 1 metre (39 in) across and 0.3 metres (12 in) high. It was probably associated originally with a stela but its original location is unknown, it was moved near to the manager's house on the San Isidro Piedra Parada plantation.Altar 5 is a damaged plain circular altar associated with Stela 2.Altar 7 is near the southern edge of the plaza on Terrace 3, where it is one of five monuments in a line running east-west.Altar 8 is a plain monument associated with Stela 5, positioned on the west side of Structure 12.Altar 9 is a low four-legged throne placed in front of Structure 11.Altar 10 was associated with Stela 13 and was found on top of the large offering of ceramics associated with that stela and the royal tomb in Structure 7A. The monument was originally a throne with cylindrical supports that was reused as an altar in the Classic period.Altar 12 is carved in the early Maya style and archaeologists consider it to be an especially early example dating to the first part of the Late Preclassic. Because of the carvings on the upper face of the altar, it is supposed that the monument was originally erected as a vertical stela in the Late Preclassic, and was reused as a horizontal altar in the Classic. At this time 16 hieroglyphs were carved around the outer rim of the altar. The carving on the upper face of the altar represents a standing human figure portrayed in profile, facing left. The figure is flanked by two vertical series of four glyphs. A smaller profile figure is depicted facing the first figure, separated from it by one of the series of glyphs. The central figure is depicted standing upon a horizontal band representing the earth, the band is flanked by two earth monsters. Above the figure is a celestial band with part of the head of a sacred bird visible in the centre. The 16 glyphs on the rim of the monument are formed by anthropomorphic figures mixed with other elements.
Question: What is carved on the outer rim of Altar 12 and are formed by anthropomorphic figures mixed with other elements?
Example Output: 16 hieroglyphs.

Example Input: Passage: After John Dortmunder is released from his latest stint in prison, he is approached by his brother-in-law, Andy Kelp, about another job. Dr. Amusa seeks a valuable gem in the Brooklyn Museum that is of great significance to his people in his country in Africa, stolen during colonial times and then re-stolen by various African nations.
Dortmunder and Kelp are joined by driver Stan Murch and explosives expert Allan Greenberg, concocting an elaborate plan to steal the gem. Although the scheme (and each subsequent one) is carefully plannedand keeps increasing in costsomething always goes awry, and the quartet has to steal the diamond again and again.
First off, the diamond is swallowed by Greenberg when he alone gets caught by the museum guards during the initial heist. Dortmunder, Kelp, and Murch, at the urging of Greenberg's rotund father Abe, a lawyer, help Greenberg escape from state prison, but they then find he does not have the diamond. After Greenberg tells his partners he hid the rock in the police station (after bodily evacuating it), the quartet break into the precinct jail by helicopter, but the rock is not where Greenberg hid it. Greenberg discloses that his father Abe was the only other person who knew where it was.
It isn't until Murch, disguised as the grunting muscle man "Chicken," threatens Abe with being thrown down an elevator shaft, that Abe gives up the location of the diamondhis safe deposit box, and he also gives up the key to it. However, Dortmunder cannot access the box because of bank vault security, and the gang leaves Abe in Dr. Amusa's office while they come up with a plan.
Question: What is the first name of the man who urges Dortmunder, Kelp, and Murch to help the explosives expert escape from prison?
Example Output:
Abe.