TASK DEFINITION: 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.
PROBLEM: Passage: When originally used in Olney, it is unknown what music, if any, accompanied the verses written by John Newton. Contemporary hymnbooks did not contain music and were simply small books of religious poetry. The first known instance of Newton's lines joined to music was in A Companion to the Countess of Huntingdon's Hymns (London, 1808), where it is set to the tune "Hephzibah" by English composer John Husband. Common meter hymns were interchangeable with a variety of tunes; more than twenty musical settings of "Amazing Grace" circulated with varying popularity until 1835 when William Walker assigned Newton's words to a traditional song named "New Britain", which was itself an amalgamation of two melodies ("Gallaher" and "St. Mary") first published in the Columbian Harmony by Charles H. Spilman and Benjamin Shaw (Cincinnati, 1829). Spilman and Shaw, both students at Kentucky's Centre College, compiled their tunebook both for public worship and revivals, to satisfy "the wants of the Church in her triumphal march". Most of the tunes had been previously published, but "Gallaher" and "St. Mary" had not. As neither tune is attributed and both show elements of oral transmission, scholars can only speculate that they are possibly of British origin. A manuscript from 1828 by Lucius Chapin, a famous hymn writer of that time, contains a tune very close to "St. Mary", but that does not mean that he wrote it."Amazing Grace", with the words written by Newton and joined with "New Britain", the melody most currently associated with it, appeared for the first time in Walker's shape note tunebook Southern Harmony in 1847. It was, according to author Steve Turner, a "marriage made in heaven ... The music behind 'amazing' had a sense of awe to it. The music behind 'grace' sounded graceful. There was a rise at the point of confession, as though the author was stepping out into the open and making a bold declaration, but a corresponding fall when admitting his blindness." Walker's collection was enormously popular, selling about 600,000 copies all over the U.S. when the total population was just over 20 million. Another shape note tunebook named The Sacred Harp (1844) by Georgia residents Benjamin Franklin White and Elisha J. King became widely influential and continues to be used.Another verse was first recorded in Harriet Beecher Stowe's immensely influential 1852 anti-slavery novel Uncle Tom's Cabin. Three verses were emblematically sung by Tom in his hour of deepest crisis. He sings the sixth and fifth verses in that order, and Stowe included another verse not written by Newton that had been passed down orally in African American communities for at least 50 years. It was originally one of between 50 and 70 verses of a song titled "Jerusalem, My Happy Home" that first appeared in a 1790 book called A Collection of Sacred Ballads:. 
Question: What are the first names of the people who were students at Kentucky's Centre College?

SOLUTION: Benjamin.

PROBLEM: Passage: Bartlett decided to send a team back to establish the exact location of the island that the Anderson party had approached, and to determine if Anderson had actually landed there. An injury to his knee ruled Mamen out from this mission, which was undertaken by ship's steward Ernest Chafe, with the Inuit pair, Kataktovik and Kuraluk. Chafe's group came within 2 miles (3 km) of Herald Island before being stopped by open water. A careful examination through binoculars revealed no signs of the missing party, and Chafe concluded that Anderson and company had not reached the island. Chafe and his party then returned to Shipwreck Camp.Meanwhile, on 4 February, Mackay and his group (Murray and Beuchat, joined by seaman Stanley Morris) announced they were leaving the next day, to seek land. Mackay presented Bartlett with a letter dated 1 February that began: "We, the undersigned, in consideration of the present critical situation, desire to make an attempt to reach the land." The letter requested appropriate supplies, and concluded by emphasising that the journey was on their own initiative and absolving Bartlett from all responsibilities. Bartlett allocated them a sledge, a tent, six gallons of oil, a rifle and ammunition and food for 50 days. They left on 5 February; the last sighting of them was a few days later, by Chafe and the Inuit, returning from their abortive trip to Herald Island. They found Mackay's party struggling to make headway, with some of their provisions lost and clothing and other equipment discarded to lighten their load. Beuchat in particular was in a distressed state, nearly delirious and in the throes of hypothermia. However, the party refused assistance and rejected Chafe's pleas that they return with him to Shipwreck Camp. Thereafter the only hint of their fate was a sailor's scarf belonging to Morris, later found buried in an ice floe. It was assumed that the four had either been crushed by the ice, or had fallen through it. 
Question: What were the last names of the people in Mackay's group?

SOLUTION: Murray.

PROBLEM: Passage: At the 56th Annual Grammy Awards in January 2014, Metallica performed "One" with Chinese pianist Lang Lang. In March 2014, Metallica began a tour called "Metallica By Request", in which fans request songs for the band to perform. A new song, titled "Lords of Summer" was written for the concerts and released as a "first take" demo in June 2014. In June 2014, the band headlined the Glastonbury Festival in an attempt to attract new fans. Ulrich said, "We have one shot, you never know if you'll be invited back". In November 2014, Metallica performed at the closing ceremony of BlizzCon 2014. In January 2015, Metallica announced a "Metallica Night" with the San Jose Sharks, which featured a Q&A session with the band and a charity auction benefiting the San Francisco Bay Chapter of the Sierra Club, but no performances. They were announced to headline Lollapalooza in March 2015, returning to perform there for the first time in 20 years. On May 2, 2015, Metallica performed their third annual Metallica Day at AT&T Park. Metallica were also announced to play at X Games for the first time at X Games Austin 2015 in Austin, Texas. On June 14, 2015, Hetfield and Hammett performed The Star-Spangled Banner live via electric guitars prior to game 5 of the NBA Finals between the Cleveland Cavaliers and Golden State Warriors at Oracle Arena in Oakland, California. In late October, the band unveiled a new website with an introduction from Ulrich containing footage from the studio of the band working on new material. On November 2, Metallica were announced to play "The Night Before" Super Bowl 50 at AT&T Park. Metallica announced they would be opening the U.S. Bank Stadium on August 20, 2016, with Avenged Sevenfold and Volbeat as support. 
Question: What bands are playing with the band that performed at the 56th Grammy Awards at U.S Bank Stadium in 2016?

SOLUTION:
Avenged Sevenfold.