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 Input:
Passage: Increasing tourist and commercial interest in petrified wood during the late 19th century began to alarm residents of the region. In 1895, the Arizona Territorial Legislature asked the U.S. Congress to create a petrified forest national park. Although this first attempt failed, in 1906 the Antiquities Act signed by President Theodore Roosevelt was used to create the Petrified Forest National Monument. Between 1934 and 1942, the federal Civilian Conservation Corps built road, trails, and structures in the monument, and the government acquired additional land in the Painted Desert section. The monument became a national park in 1962. Six years after the signing of the Wilderness Act in 1964 by President Lyndon B. Johnson, wilderness areas (where human activity is limited), were designated in the park. In 2004, President George W. Bush signed a bill authorizing the eventual expansion of the park from 93,353 acres (about 146 mi2 or 378 km2) to 218,533 acres (about 341 mi2 or 884 km2). Theft of petrified wood is still a problem. Despite a guard force of seven National Park Service rangers, fences, warning signs, and the threat of a $325 fine, an estimated 12 short tons (11,000 kg) of the fossil wood is stolen from the Petrified Forest every year.Jessee Walter Fewkes, the first archeologist to visit Puerco Ruin, predicted in the late 19th century that it would yield many artifacts. Conservationist John Muir conducted the first excavations of the ruin in 1905–06. Although he did not publish his findings, he urged the federal government to preserve Petrified Forest. Professional archeological work in the park began in the early 20th century when Walter Hough conducted excavations at Puerco Ruin and other sites.  In 1919, a phytosaur skull was discovered near Blue Mesa in the Petrified Forest and sent to the Museum of Paleontology in Berkeley, California.  In 1921, Annie Alexander, founder of the museum, visited Blue Mesa to collect more of the phytosaur and other specimens; this led to further excavations by paleontologist Charles Camp.  Since then, more than 250 fossil sites have been documented in the park. In the 1930s, the Civil Works Administration funded research in the park by archeologists H.P. Mera and C.B. Cosgrove. A National Park Service resurvey of the Petrified Forest in the early 1940s identified most of the large sites with stone ruins, and subsequent surveys since 1978 have identified a total of more than 600 artifact sites, many of them small. Research in paleontology and archeology continues at the park in the 21st century. 
Question: Who urged the federal government to preserve Petrified Forest?

Ex Output:
John Muir.


Ex Input:
Passage: Drake ended his studies at Cambridge nine months before graduation, and in autumn 1969 moved to London. His father remembered "writing him long letters, pointing out the disadvantages of going away from Cambridge ... a degree was a safety net, if you manage to get a degree, at least you have something to fall back on; his reply to that was that a safety net was the one thing he did not want." Drake spent his first few months in London drifting from place to place, occasionally staying at his sister's Kensington flat but usually sleeping on friends’ sofas and floors. Eventually, in an attempt to bring some stability and a telephone into Drake's life, Boyd organised and paid for a ground floor bedsit in Belsize Park, Camden.
On 5 August 1969, Drake recorded five songs for the BBC's John Peel show ("Cello Song", "Three Hours", "River Man", "Time of No Reply" and an early version of "Bryter Layter"), three of which were broadcast on the following night. A month later, on 24 September, he opened for Fairport Convention at the Royal Festival Hall in London, followed by appearances at folk clubs in Birmingham and Hull. Folk singer Michael Chapman said of the performances:The folkies did not take to him; [they] wanted songs with choruses. They completely missed the point. He didn't say a word the entire evening. It was actually quite painful to watch. I don't know what the audience expected, I mean, they must have known they weren't going to get sea-shanties and sing-alongs at a Nick Drake gig!
The experience reinforced Drake's decision to retreat from live appearances; the few concerts he did play around this time were usually brief, awkward, and poorly attended. Drake seemed reluctant to perform and rarely addressed his audience. As many of his songs were played in different tunings, he frequently paused to retune between numbers. 
Question: Where did the man who did not like to play in front of live audiences end his studies?

Ex Output:
Cambridge.


Ex Input:
Passage: In December 1775, Cletus Moyer is a free black Northerner in colonial America, working with a pre-Underground Railroad network to help slaves escape captivity. In the days just prior to Christmas, a group of bounty hunters led by Hattie Carraway captures Moyer near the Parker plantation in Spotsylvania County, Virginia. Because of his capture, dozens of slaves who have already left their plantations in escape attempts are in danger of being captured as well. Moyer implores two slaves from the nearby Reynolds plantation to take his place: Kunta Kinte, a Mandinka in his mid-twenties who was captured in what is now the Gambia, and Fiddler, an elderly man who was born into slavery. Kunta is eager to help (and to escape himself), but Fiddler is unwilling, fearful of the consequences if they are caught.
After an unsuccessful slave revolt elsewhere in the colony, Moyer and two slaves are hanged by Carraway's men on Christmas Eve, prompting Fiddler to set aside his fear and help Kunta lead the runaway slaves to freedom. Although the pair successfully leads the runaways that night to their next stop on the escape route (a boat waiting at the river) there is only room for one of them, and since neither one wants to go without the other, they both decide to stay.  That choice forces them to return to the Parker plantation and manufacture an excuse for their temporary absence. Nevertheless, Kunta and Fiddler are left with the satisfaction of knowing that they helped to give a group of fellow slaves the best Christmas gift of all: freedom. 
Question: What's the last name of the one responsible for involving Kunta and Fiddler in freeing slaves?

Ex Output:

Moyer.