TASK DEFINITION: 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.
PROBLEM: Passage: Filmmaker Adam Green begins a documentary about artwork that features monsters. Green is surprised when William Dekker, a retired police officer, contacts him and claims to have proof of the existence of monsters. Green's wife reacts skeptically, but he reworks his documentary to focus on Dekker and his efforts to expose the monsters' underground home, which he calls "The Marrow". Green interviews Dekker at his house, who claims that he has seen many monsters and identified some of them through sketches. Dekker mentions his son once but diverts from the topic when Green inquires. The shooting crew of Green and his cameraman wait at the Marrow's entrance; a dug-up hole in the cemetery in the woods. On the first night they do not see anything although Dekker keeps claiming that he could see one of the monsters.
Question: What does the person contacted by the police officer do for a living?

SOLUTION: Filmmaker.

PROBLEM: Passage: The company, retaining the title "Sadler's Wells Opera", opened at the Coliseum on 21 August 1968, with a new production of Mozart's Don Giovanni, directed by Sir John Gielgud. Though this production was not well received, the company rapidly established itself with a succession of highly praised productions of other works. Arlen died in January 1972, and was succeeded as managing director by Lord Harewood.The success of the 1968 Mastersingers was followed in the 1970s by the company's first Ring cycle, conducted by Goodall, with a new translation by Andrew Porter and designs by Ralph Koltai. The cast included Norman Bailey, Rita Hunter and Alberto Remedios. In Harewood's view, among the highlights of the first ten years at the Coliseum were the Ring, Prokofiev's War and Peace, and Richard Strauss's Salome and Der Rosenkavalier.
The company's musical director from 1970 to 1977 was Charles Mackerras. Harewood praised his exceptional versatility, with a range "from The House of the Dead to Patience." Among the operas he conducted for the company were Handel's Julius Caesar starring Janet Baker and Valerie Masterson; five Janacek operas; The Marriage of Figaro with pioneering use of 18th century performing style; Massenet's Werther; Donizetti's Mary Stuart with Baker; and Sullivan's Patience. The company took the production of the last to the Vienna Festival in 1975, along with Britten's Gloriana. Sir Charles Groves succeeded Mackerras as musical director from 1978 to 1979, but Groves was unwell and unhappy during his brief tenure. Starting in 1979, Mark Elder succeeded Groves in the post, and described Groves "immensely encouraging and supportive".A long-standing concern of Arlen and then Harewood was the need to change the company's name to reflect the fact that it was no longer based at Sadler's Wells theatre. Byam Shaw commented "The one major setback the Sadler's Wells Opera Company suffered from its transplant was that unheeding taxi drivers kept on taking their patrons up to Rosebery Avenue".Harewood considered it an elementary rule that "you must not carry the name of one theatre if you are playing in another one." Covent Garden, protective of its status, objected to the suggestion that the Sadler's Wells company should be called "The British National Opera" or "The National Opera", although neither Scottish Opera nor the Welsh National Opera opposed such a change. Eventually the British government decided the matter, and the title "English National Opera" was approved. The company's board adopted the new name in November 1974. In 1977, in response to demand for more opera productions in English provincial cities, a second company was established. It was based at Leeds in northern England, and was known as ENO North. Under Harewood's guidance, it flourished, and in 1981 it became an independent company, Opera North.
Question: What is the first name of the person who unwell and unhappy during his brief tenure?

SOLUTION: Charles.

PROBLEM: Passage: Melanie Daniels, a young socialite, meets criminal defense attorney Mitch Brenner in a San Francisco pet shop. Mitch wants to purchase a pair of lovebirds for his sister's eleventh birthday, but the shop has none. He recognizes Melanie from a court appearance, but she does not know him; he plays a prank by pretending to mistake her for a saleswoman. Melanie is infuriated by the prankbut finds herself romantically intrigued by Mitch.
Melanie purchases a pair of lovebirds and drives to Mitch's weekend address in Bodega Bay to deliver them. Wanting to surprise him, she rents a motorboat so she can approach the Brenner house from the bay instead of the road. She sneaks the birds inside the house and heads back across the bay. Mitch discovers the birds, spots Melanie's boat during her retreat, and drives around the bay to meet her. Melanie is attacked and injured by a seagull near shore on the town side. Mitch treats her abrasion and invites her to dinner; she hesitantly agrees.
Melanie gets to know Mitch, his domineering mother Lydia, and his younger sister Cathy. She also befriends local school teacher Annie Hayworth, Mitch's ex-lover. While spending the night at Annie's house, she and Annie are startled by a loud thud: a gull kills itself by flying into the front door. At Cathy's birthday party the next day, the guests are attacked by seagulls. The following evening, sparrows invade the Brenner home through the chimney.
Question: What is the first name of the person who plays a prank?

SOLUTION:
Mitch.