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.

Example Input: Passage: George Frederic Watts was born in 1817, the son of a London musical instrument manufacturer. His two brothers died in 1823, and his mother in 1826, giving Watts an obsession with death throughout his life. Watts was apprenticed as a sculptor at the age of 10, and by his mid-teens was proficient enough as an artist to be earning a living as a portrait painter. At the age of 18 he gained admission to the Royal Academy schools, although he disliked their methods and his attendance was intermittent. From 1837, Watts was successful enough to devote himself full-time to painting.In 1843 Watts travelled to Italy where he remained for four years. On his return to London he suffered from melancholia, and painted many notably gloomy works. His skills were widely celebrated, and in 1856 he decided to devote himself to portrait painting. His portraits were extremely highly regarded, and in 1867 he was elected to the Royal Academy, at the time the highest honour available to an artist, although he rapidly became disillusioned with its culture. From 1870 onwards he became widely renowned as a painter of allegorical and mythical subjects; by this time, he was one of the most highly regarded artists in the world. In 1881 he added a glass-roofed gallery to his home at Little Holland House, which was open to the public at weekends, further increasing his fame. 
Question: What is the last name of the person gained admission to the Royal Academy schools at age 18?
Example Output: Watts.

Example Input: Passage: The geography and ecology of the Everglades involve the complex elements affecting the natural environment throughout the southern region of the U.S. state of Florida. Before drainage, the Everglades were an interwoven mesh of marshes and prairies covering 4,000 square miles (10,000 km2). The Everglades is simultaneously a vast watershed that has historically extended from Lake Okeechobee 100 miles (160 km) south to Florida Bay (around one-third of the southern Florida peninsula), and many interconnected ecosystems within a geographic boundary. It is such a unique meeting of water, land, and climate that the use of either singular or plural to refer to the Everglades is appropriate. When Marjory Stoneman Douglas wrote her definitive description of the region in 1947, she used the metaphor "River of Grass" to explain the blending of water and plant life.
Although sawgrass and sloughs are the enduring geographical icons of the Everglades, other ecosystems are just as vital, and the borders marking them are subtle or nonexistent. Pinelands and tropical hardwood hammocks are located throughout the sloughs; the trees, rooted in soil inches above the peat, marl, or water, support a variety of wildlife. The oldest and tallest trees are cypresses, whose roots are specially adapted to grow underwater for months at a time. The Big Cypress Swamp is well known for its 500-year-old cypresses, though cypress domes can appear throughout the Everglades. As the fresh water from Lake Okeechobee makes its way to Florida Bay, it meets salt water from the Gulf of Mexico; mangrove forests grow in this transitional zone, providing nursery and nesting conditions for many species of birds, fish, and invertebrates. The marine environment of Florida Bay is also considered part of the Everglades because its sea grasses and aquatic life are attracted to the constant discharge of fresh water.
These ecological systems are always changing due to environmental factors. Geographic features such as the Western Flatwoods, Eastern Flatwoods, and the Atlantic Coastal Ridge affect drainage patterns. Geologic elements, climate, and the frequency of storms and fire are formative processes for the Everglades. They help to sustain and transform the ecosystems in the Shark River Valley, Big Cypress Swamp, coastal areas and mangrove forests. Ecosystems have been described as both fragile and resilient. Minor fluctuations in water levels have far-reaching consequences for many plant and animal species, and the system cycles and pulses with each change. 
Question: What type of system does minor fluctuations in water levels have far-reaching consequences for?
Example Output: Ecosystems.

Example Input: Passage: In the late 1970s, Dylan converted to Evangelical Christianity, undertaking a three-month discipleship course run by the Association of Vineyard Churches; and released two albums of contemporary gospel music. Slow Train Coming (1979) featured the guitar accompaniment of Mark Knopfler (of Dire Straits) and was produced by veteran R&B producer Jerry Wexler. Wexler said that Dylan had tried to evangelize him during the recording. He replied: "Bob, you're dealing with a 62-year-old Jewish atheist. Let's just make an album." Dylan won the Grammy Award for Best Male Rock Vocal Performance for the song "Gotta Serve Somebody". His second Christian-themed album, Saved (1980), received mixed reviews, described by Michael Gray as "the nearest thing to a follow-up album Dylan has ever made, Slow Train Coming II and inferior" When touring in late 1979 and early 1980, Dylan would not play his older, secular works, and he delivered declarations of his faith from the stage, such as:
Years ago they ... said I was a prophet. I used to say, "No I'm not a prophet" they say "Yes you are, you're a prophet." I said, "No it's not me." They used to say "You sure are a prophet." They used to convince me I was a prophet. Now I come out and say Jesus Christ is the answer. They say, "Bob Dylan's no prophet." They just can't handle it.
Dylan's Christianity was unpopular with some fans and musicians. Shortly before his murder, John Lennon recorded "Serve Yourself" in response to Dylan's "Gotta Serve Somebody". By 1981, Stephen Holden wrote in The New York Times that "neither age (he's now 40) nor his much-publicized conversion to born-again Christianity has altered his essentially iconoclastic temperament.". 
Question: What was the last name of the person who said "No I'm not a prophet"?
Example Output:
Dylan.