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: Hotshot ensign Alan Drake, fresh from the flying academy at Pensacola, Florida, gets off to a bad start with the pilots of an elite squadron, nicknamed the "Hellcats", to which he has been posted in San Diego. Making a nearly disastrous landing attempt in heavy fog against orders and disqualifying the squadron during a competitive shooting exercise by colliding with the target drogue does not endear him to his fellow pilots. He also asks out a woman he has met, Lorna, not knowing that she is the squadron commander Billy Gary's (Walter Pidgeon) wife.
However, Drake is earnest and contrite. He mixes with the Hellcats at the Garys' large house, which the sociable couple have opened as an unofficial officers' club. His flying and his social errors are forgiven, and his fellow pilots accept him, nicknaming him "Pensacola". 
Drake further proves himself when he helps Lieutenant Jerry Banning solve a problem in a blind-landing apparatus he is developing. Just after Commander Gary is sent out of town on assignment, Banning decides the apparatus is ready to test in fog — but it fails and Banning is killed. Working with Banning's assistant, Drake soon identifies the problem, but no further testing is allowed until Commander Gary's return.
Banning had been a childhood friend of Lorna Gary, and is not her first friend to die. She sinks into a deep depression. She also knows that Gary will expect her to hide her feelings and carry on, something that is very much not in her nature. Drake, appreciating the help the Garys gave him when he arrived, visits her at her home, and convinces her she should not suffer alone. They go for walks, drives, and tennis; he amuses her with jokes. Finally, at a restaurant she reaches for his hand and in doing so realizes she is falling for him. She quickly breaks away, and says she cannot see him any more. 
Question: What is the last name of the person whose hand Lorna reaches for and realizes she is falling for?

Ex Output:
Drake.


Ex Input:
Passage: During a Fitzroy Football Club benefit concert with other Neighbours cast members, Minogue performed "I Got You Babe" as a duet with actor John Waters, and "The Loco-Motion" as an encore. She was subsequently signed to a recording contract with Mushroom Records in 1987. Her first single, "The Locomotion", spent seven weeks at number one on the Australian singles charts and became the country's highest-selling single in the 1980s. She received the ARIA Award for the year's highest-selling single. Its success resulted in Minogue travelling to England with Mushroom Records executive Gary Ashley to work with producers Stock, Aitken & Waterman. They knew little of Minogue and had forgotten that she was arriving; as a result, they wrote "I Should Be So Lucky" while she waited outside the studio. The song reached number one in the United Kingdom, Australia, Germany, Finland, Switzerland, Israel and Hong Kong. Minogue won her second consecutive ARIA Award for the year's highest-selling single, and received a "Special Achievement Award". Minogue's debut album, Kylie was released in July 1988. The album was a collection of dance-oriented pop tunes and spent more than a year on the UK Albums Chart, including several weeks at number one. The album went gold in the United States, and the single, "The Locomotion", reached number three on the US Billboard Hot 100 chart, and number one on the Canadian Singles Chart. The single "Got to Be Certain" became her third consecutive number one single on the Australian music charts. Later in the year, she left Neighbours to focus on her music career. Minogue also collaborated with Jason Donovan for the song "Especially for You", which peaked at number-one in the United Kingdom and in December 2014 sold its one millionth copy in the UK. Minogue was sometimes referred to as "the Singing Budgie" by her detractors over the coming years. In a review of the album Kylie for AllMusic, Chris True described the tunes as "standard, late-80s ... bubblegum", but added, "her cuteness makes these rather vapid tracks bearable".Minogue's second album Enjoy Yourself was released in October 1989. The album was a success in the United Kingdom, Europe, New Zealand, Asia and Australia and spawned number one singles "Hand on Your Heart" and "Tears on My Pillow". However, it failed to sell well throughout North America and Minogue was dropped by her American record label Geffen Records. She then embarked on her first concert tour, the Enjoy Yourself Tour, in the United Kingdom, Europe, Asia and Australia in February 1990. She was also one of the featured vocalists on the remake of "Do They Know It's Christmas?". Minogue's debut film, The Delinquents was released in December 1989. The movie received mixed reviews by critics but proved popular with audiences. In the UK it grossed more than £200,000, and in Australia, it was the fourth-highest grossing local film of 1989 and the highest grossing local film of 1990. 
Question: What is the name of the person that had the highest selling single in the 1980's?

Ex Output:

Minogue.