In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Ex Input:
Passage: A man unveils a valuable painting he picked up for $50,000 and is killed. A card with a large black ace (of spades) is put on his chest. Another "Black Ace" victim. The killer sends his victims a Black Ace card, warning them they are to die and then kills them, his way of taunting the police. Neil Broderick, an author, intends writing a book about him and is on his way to see Thornton Drake to get more information about him. Austin Winters is his secretary and Neil met his daughter Martha on the train, on the way to Chicago.
Drake has just received a Black Ace, with the words: "At seven tomorrow night", the time he is to be killed. Two plainclothes cops arrive from police headquarters, having had a call, Clancy and Dugan (both incompetents). Martha suggests that they leave for Drake's Louisiana plantation tomorrow morning and be far away from there at seven tomorrow night. Drake agrees and suggests they all go. On the flight, the lights go off for some seconds and when they come on again, Austin Winters is dead without a mark on him.
At the plantation, Clancy ineptly questions the suspects till Neil points out that they are now in another state, so out of their jurisdiction. Neil goes to another room and makes a phone call, then signals to someone outside. After he finishes his call, the line is cut. Meanwhile one of the pilots has taken off in the plane, leaving the other pilot, Henderson, behind who claims he does not know anything though he was out of the cockpit when Winters was killed.
The coroner finds a letter on the dead man which is to be read if Winters dies. It will reveal the identity of the Black Ace. Clancy starts reading it aloud and unsurprisingly the lights go off and the letter has vanished when the lights are turned on again. People locked in their rooms that night and Neil has a hidden car outside signal to him.

Ex Output:
Who is Neil Broderick writing a book about?

Ex Input:
Passage: Nathan Ellis, a 9-year-old maths prodigy, has just lost his father in a car accident. Nathan is diagnosed with autism early in the film, and his father was the only one who was able to connect normally with him. Although Nathan values his mother, Julie, he shuns any physical contact with her and treats her as more of a caretaker than a parent. Wanting to make sure Nathan isn't distracted from his studies, Julie enrolls him in advanced classes at a new school. There, he comes under the tutelage of teacher Martin, also a math genius, who now suffers from multiple sclerosis. Martin sees himself in Nathan, once a promising young mind in the field of mathematics, who gave it all up once he was diagnosed with his illness.
Seven years later, Martin is preparing Nathan to compete for a place in the International Mathematical Olympiad, a prestigious high school competition consisting of the world's best young mathematicians. This year, it is to be held at Cambridge, after a two-week math camp in Taiwan where the students will study for the test that determines the winners. Nathan fears he's not good enough to qualify but ends up doing well enough to accompany 15 other British teenagers to Taiwan.
Suddenly thrust out of his comfort zone, Nathan finds himself no longer the smartest math whiz in the room, and his social anxieties nearly paralyze his performance. He has trouble reading the social cues of others and flinches at the slightest physical contact with another person. Nathan is paired with a female Chinese student, Zhang Mei, who slowly helps him adjust to his new surroundings and helps him fight through his fears. By the skin of their teeth, Nathan and Zhang make the cut to compete in Cambridge.

Ex Output:
Who comes under the tutelage of a math genius teacher?

Ex Input:
Passage: As the timber was exhausted and the land burned, many companies abandoned their holdings. Conservationists such as Joseph Rothrock became concerned that the forests would not regrow without proper management. They called for a change in the philosophy of forest management and for the state to purchase land from the lumber companies. In 1895, Rothrock was appointed the first forestry commissioner in what became the Pennsylvania Department of Forests and Waters, the forerunner of today's Department of Conservation and Natural Resources (DCNR). In 1897, the Pennsylvania General Assembly passed legislation that authorized the purchase of "unseated lands for forest reservations", and the first of the Pennsylvania state forest lands were acquired the following year.The state first bought land that became the Moshannon State Forest in 1898; the second purchase, and first in the Quehanna region, was 3,263 acres (1,320 ha) in the Three Runs area, acquired for $1 an acre ($2.47 a hectare) in 1900. Three smaller state forests (Karthaus, Sinnemahoning, and Moshannon) were merged to form the present Moshannon State Forest; in 1997, the forest covered 131,622 acres (53,266 ha). The first purchase for the Elk State Forest was made in 1900, and by 1997 it encompassed 197,729 acres (80,018 ha). Forty-six percent, or 22,179 acres (8,976 ha), of the total 48,186 acres (19,500 ha) of Quehanna Wild Area lies in the Elk State Forest. The remainder lies in the Moshannon State Forest.The state established a tree nursery in the Moshannon State Forest in 1911, which became the largest in Pennsylvania before it closed in 1980. In addition to planting millions of trees, in 1913 the state encouraged use of state forest lands by allowing permanent leases for camp sites; when the state stopped issuing new permits in 1970, 4,500 campsites had been leased. The Pennsylvania Game Commission began purchasing land for state game preserves in 1920, and by 1941, State Game Lands 34, which is partly in Quehanna Wild Area, had been established. Despite these conservation efforts, major forest fires swept the Moshannon and Elk state forests in 1912, 1913, 1926, and 1930, and minor fires occurred in other years.

Ex Output:
What group called for a change in forest management?