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.
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Question: 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?

Answer: John Muir.


Question: Passage: Half of Minneapolis–Saint Paul residents work in the city where they live. Most residents drive cars, but 60% of the 160,000 people working downtown commute by means other than a single person per auto. The Metropolitan Council's Metro Transit, which operates the light rail system and most of the city's buses, provides free travel vouchers through the Guaranteed Ride Home program to allay fears that commuters might otherwise be occasionally stranded if, for example, they work late hours.On January 1, 2011, the city's limit of 343 taxis was lifted.Minneapolis currently has two light rail lines and one commuter rail line. The METRO Blue Line LRT (formerly the Hiawatha Line) serves 34,000 riders daily and connects the Minneapolis–Saint Paul International Airport and Mall of America in Bloomington to downtown. Most of the line runs at surface level, although parts of the line run on elevated tracks (including the Franklin Avenue and Lake Street/Midtown stations) and approximately 2 miles (3.2 km) of the line runs underground, including the Lindbergh terminal subway station at the airport. 
Question: What is the former name of the line that has a terminal subway station at the airport?

Answer: Hiawatha Line.


Question: Passage: Britten's fellow-composers had divided views about him. To Tippett he was "simply the most musical person I have ever met", with an "incredible" technical mastery; some contemporaries, however, were less effusive. In Tippett's view Walton and others were convinced that Britten and Pears were leaders of a homosexual conspiracy in music, a belief Tippett dismisses as ridiculous, inspired by jealousy at Britten's postwar successes. Leonard Bernstein considered Britten "a man at odds with the world", and said of his music: "[I]f you hear it, not just listen to it superficially, you become aware of something very dark". The tenor Robert Tear, who was closely associated with Britten in the latter part of the composer's career, made a similar point: "There was a great, huge abyss in his soul ... He got into the valley of the shadow of death and couldn't get out".In the decade after Britten's death, his standing as a composer in Britain was to some extent overshadowed by that of the still-living Tippett. The film-maker Tony Palmer   thought that Tippett's temporary ascendancy might have been a question of the two composers' contrasting personalities: Tippett had more warmth and had made fewer enemies. In any event this was a short-lived phenomenon; Tippett adherents such as the composer Robert Saxton soon rediscovered their enthusiasm for Britten, whose audience steadily increased during the final years of the 20th century. Britten has had few imitators; Brett describes him as "inimitable, possessed of ... a voice and sound too dangerous to imitate". Nevertheless, after his death Britten was lauded by the younger generation of English composers to whom, in the words of Oliver Knussen, he became "a phenomenal father-figure". Brett believes that he affected every subsequent British composer to some extent: "He is a key figure in the growth of British musical culture in the second half of the 20th century, and his effect on everything from opera to the revitalization of music education is hard to overestimate."Whittall believes that one reason for Britten's enduring popularity is the "progressive conservatism" of his music. He generally avoided the avant garde, and did not challenge the conventions in the way that contemporaries such as Tippett did. Perhaps, says Brett, "the tide that swept away serialism, atonality and most forms of musical modernism and brought in neo-Romanticism, minimalism and other modes of expression involved with tonality carried with it renewed interest in composers who had been out of step with the times". Britten defined his mission as a composer in very simple terms: composers should aim at "pleasing people today as seriously as we can". 
Question: What is the name of the person who is described as being "...a key figure in the growth of British musical culture in the second half of the 20th century, and his effect on everything from opera to the revitalization of music education is hard to overestimate"?

Answer:
Britten.