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.

Input: Consider Input: Passage: James Barton Longacre (August 11, 1794 – January 1, 1869) was an American portraitist and engraver, and the fourth Chief Engraver of the United States Mint from 1844 until his death. Longacre is best known for designing the Indian Head cent, which entered commerce in 1859, and for the designs of the Shield nickel, Flying Eagle cent and other coins of the mid-19th century.
Longacre was born in Delaware County, Pennsylvania, in 1794. He ran away to Philadelphia at age 12, where he became an apprentice in a bookstore. His artistic talent developed and he was released to apprentice in an engraving firm.  He struck out on his own in 1819, making a name providing illustrations for popular biographical books. He portrayed the leading men of his day; support from some of them, such as South Carolina Senator John C. Calhoun, led to his appointment as chief engraver after the death of Christian Gobrecht in 1844.
In Longacre's first years as a chief engraver, the Philadelphia Mint was dominated by Mint Director Robert M. Patterson and Chief Coiner Franklin Peale. Conflict between Longacre and the two men developed after Congress ordered a new gold dollar and double eagle, with both to be designed by Longacre.  Peale and Patterson nearly had Longacre fired, but the chief engraver was able to convince Treasury Secretary William M. Meredith that he should be retained.  Both Patterson and Peale left the Mint in the early 1850s, ending the conflict.
In 1856, Longacre designed the Flying Eagle cent. When that design proved difficult to strike, Longacre was responsible for the replacement, the Indian Head cent, issued beginning in 1859. Other coins designed by Longacre include the silver and nickel three-cent pieces, the Shield nickel, the pattern Washington nickel, and the two-cent piece.  In 1866–1867, he redesigned the coins of Chile. Longacre died suddenly on New Year's Day 1869; he was succeeded by William Barber.  Longacre's coins are generally well-regarded today, although they have been criticized for lack of artistic advancement. 
Question: What is the last name of the person who was able to convince the Treasury Secretary that he should be retained?

Output: Longacre.


Input: Consider Input: Passage: Minnesota has some of the earth's oldest rocks, gneisses that are about 3.6 billion years old (80% as old as the planet). About 2.7 billion years ago, basaltic lava poured out of cracks in the floor of the primordial ocean; the remains of this volcanic rock formed the Canadian Shield in northeast Minnesota. The roots of these volcanic mountains and the action of Precambrian seas formed the Iron Range of northern Minnesota. Following a period of volcanism 1.1 billion years ago, Minnesota's geological activity has been more subdued, with no volcanism or mountain formation, but with repeated incursions of the sea, which left behind multiple strata of sedimentary rock.In more recent times, massive ice sheets at least one kilometer thick ravaged the state's landscape and sculpted its terrain. The Wisconsin glaciation left 12,000 years ago. These glaciers covered all of Minnesota except the far southeast, an area characterized by steep hills and streams that cut into the bedrock. This area is known as the Driftless Zone for its absence of glacial drift. Much of the remainder of the state outside the northeast has 50 feet (15 m) or more of glacial till left behind as the last glaciers retreated. Gigantic Lake Agassiz formed in the northwest 13,000 years ago. Its bed created the fertile Red River valley, and its outflow, glacial River Warren, carved the valley of the Minnesota River and the Upper Mississippi downstream from Fort Snelling. Minnesota is geologically quiet today; it experiences earthquakes infrequently, and most of them are minor. 
Question: What is the name of the area in Minnesota was not covered by massive ice sheets?

Output: the Driftless Zone.


Input: Consider Input: Passage: The film opens in the year 1958, where steel heiress Edna Buxton enters a talent contest. Her overbearing mother is at odds with her, arguing that Edna should choose a specific song and wardrobe for the contest. At the contest, Edna swaps dresses with a blue singer named Doris, and even changes her song at the last minute, infuriating her mother, who leaves before seeing Edna win the competition.
An excited Edna decides to use her grand prize winnings to record a demo. The studio producer tactfully delivers the painful truth to Edna that not only are girl singers not getting signed, the record companies are trying to get rid of the ones currently on their rosters. However, when Edna tells him that she wrote the song, he is impressed enough to direct her to Joel Milner who takes her under his wing, renames her "Denise Waverly" and invents a blue-collar persona for her. Milner reworks her song for a male doo-wop group, the Stylettes, as male solo artists are groups are far more marketable. The song becomes a hit.
Denise (formerly Edna) moves to New York City and becomes a songwriter in the Brill Building. At a party, she meets the arrogant songwriter Howard Caszatt, and despite an awkward initial meeting they become romantically involved. She also reunites with Doris. Denise offers to and writes a song specifically for Doris and her two girlfriends, persuading Milner to audition and hire the group. 
In 1965, Howard and Denise begin writing together; they pen a song called "Unwanted Number," based on a young girl's unwanted pregnancy.  Although it is banned, it attracts the attention of prominent and influential disc jockey John Murray who, despite the negative attention of the song, credits Denise with sparking the craze for girl groups. 
Question: What is the full name of the person that has their name changed in Denise Waverly?


Output: Edna Buxton.