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: By the 18th century, the menagerie was open to the public; admission cost three half-pence or the supply of a cat or dog to be fed to the lions. By the end of the century, that had increased to 9 pence. A particularly famous inhabitant was Old Martin, a large grizzly bear given to George III by the Hudson's Bay Company in 1811. An 1800 inventory also listed a tiger, leopards, a hyena, a large baboon, various types of monkeys, wolves and "other animals". By 1822, however, the collection included only a grizzly bear, an elephant and some birds. Additional animals were then introduced. In 1828 there were over 280 representing at least 60 species as the new keeper Alfred Copps was actively acquiring animals.After the death of George IV in 1830, a decision was made to close down the Menagerie. In 1831, most of the stock was moved to the London Zoo which had opened in 1828. The last of the animals left in 1835, relocated to Regent's Park. This decision was made after an incident, although sources vary as to the specifics: either a lion was accused of biting a soldier, or a sailor, Ensign Seymour, had been bitten by a monkey. The Menagerie buildings were removed in 1852 but the Keeper of the Royal Menagerie was entitled to use the Lion Tower as a house for life. Consequently, even though the animals had long since left the building, the tower was not demolished until the death of Copps, the last keeper, in 1853.In 1999, physical evidence of lion cages was found, one being 2x3 metres (6.5x10 feet) in size, very small for a lion that can grow to be 2.5 meters (approximately 8 feet) long. In 2008, the skulls of two male Barbary lions (now extinct in the wild) from northwest Africa were found in the moat area of the Tower. Radiocarbon tests dated them from 1280–1385 and 1420–1480. During 2011 an exhibition was hosted at the Tower with fine wire sculptures by Kendra Haste. 
Question: What was the last name of the last keeper who died in 1853?

Ex Output:
Copps.


Ex Input:
Passage: Eleven year old Randy Daytona becomes anxious when he learns that his father Peter has bet on his performance in the 1988 Summer Olympics table tennis finals. During his first game between his opponent Karl Wolfschtagg from the German Democratic Republic, Daytona has an accident and suffers an injury. Unable to continue, he loses the match. Loan sharks, in the employ of criminal mastermind Feng, murder his father, and Daytona leaves competitive ping-pong.
Nineteen years later, Daytona is dismissed from the Peppermill casino and meets FBI agent Ernie Rodriguez, who requests his assistance in arresting Feng for running guns. Feng's hidden jungle hideout hosts a black-market Ping-Pong tournament, and Daytona's invitation is a way for the FBI to infiltrate Feng's organization. When Daytona agrees, Rodriguez tells him to win enough championships that Feng's scouts notice him. After losing a local tournament, Daytona is apprenticed to a blind man in Chinatown named Wong, who was Feng's former mentor. Daytona also meets Wong's niece, Maggie. When locals vandalize Master Wong's house for violating their edict against teaching white people ping pong, Daytona is forced to play against "The Dragon", a young girl, in exchange for Wong's right to stay. After Daytona beats the Dragon, Feng's men take notice of his win and bring Daytona, Rodriguez, and Wong to Feng's facility. 
Question: Who do the loan sharks that work for the criminal mastermind kill?

Ex Output:
Peter.


Ex Input:
Passage: A mysterious artist - and psychopath - named Ronnie Mason, steals a dead woman's wedding ring and money and leaves a fake suicide note. The woman's husband, Thomas Turner, when questioned by the local police, believes his dead wife might have been seeing Mason behind his back. He also believes his wife was murdered, but in the absence of other evidence, the police list it as a suicide and drop the case.
Mason leaves town, changes his name to Marsh and, using a limp he acquired jumping from the dead woman's bedroom window and a veteran's pin he steals from a fellow passenger on the L.A. bus, passes himself off as a wounded soldier and rents a room in the house of public stenographer Hilda Fenchurch and her younger sister Anne. To the consternation of professor Andrew Lang, who secretly loves Hilda, she falls for Marsh.
The scheming Marsh learns that Anne might inherit a great deal of money, so he suddenly switches his affections toward her. Hilda is jealous and suspicious. She plots to lure Marsh to a beach house and poison him. She is unable to go through with it, but when Marsh runs off, he is surprised by Thomas Turner and plunges off a steep cliff to his death. 
Question: What is Ronnie's assumed last name?

Ex Output:

Marsh.