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: Possibly because of its size, The Sirens and Ulysses failed to sell at the 1837 Summer Exhibition. In October 1837 wealthy Manchester cotton merchant Daniel Grant, an admirer of Etty who had already commissioned Venus and her Doves from him, met Etty at Heaton Park races and offered to buy The Sirens and Ulysses and Etty's smaller Samson Betrayed by Delilah unseen for a total of 200. Etty was hoping for 400 for the two paintings, but on being told by Grant that his firm had lost 100,000 that year offered a price of 300 for the pair. Grant counter-offered 250 (about 22,000 in today's terms), which Etty refused. On leaving at the end of the evening, Grant suddenly said, "Will you take the money?", startling Etty, who in his surprise agreed. Grant died shortly afterwards, leaving the painting to his brother William, who in turn gave it to the Royal Manchester Institution in 1839.Etty considered the painting to be his best work, insisting that it form the centrepiece of his 1849 Royal Society of Arts solo exhibition. The Royal Manchester Institution was concerned that the painting would be damaged if moved, refusing to allow it to be used in the exhibition until Etty, and a number of influential friends, visited Manchester to beg them to release it. Etty died later that year, and his work enjoyed a brief boom in popularity. Interest in him declined over time, and by the end of the 19th century the cost of all his paintings had fallen below their original prices. As it was rarely exhibited, The Sirens and Ulysses had little influence on later artists, although it is credited as an influence on Frederic Leighton's 1858 The Fisherman and the Syren.
Ulysses and the Sirens is one of those great efforts of my Art achieved in the vigour of my life, I can never make again.

Ex Output:
What were the names of what Etty was hoping to get 400 for?

Ex Input:
Passage: In 1917, France is embroiled in World War I. Dubois, head of the French spy bureau, offers to spare the life of a captured agent (an uncredited Mischa Auer) if he will reveal who he is protecting. Dubois suspects it is Mata Hari, a celebrated exotic dancer, but the prisoner chooses execution by firing squad.
Lieutenant Alexis Rosanoff of the Imperial Russian Air Force lands in Paris after a dangerous flight over enemy territory, bringing important dispatches from Russia. He persuades his superior, General Serge Shubin, to take him to see Mata Hari perform that night. Rosanoff is instantly smitten by her (as are most of the men of Paris). By youthful exuberance and good looks, he persuades her to spend the night with him. However, the next morning, she makes it clear to him that it was a one-time dalliance.
Carlotta secretly instructs Mata Hari to report to Andriani, their spymaster. Andriani orders her to find out from General Shubin the contents of the dispatches Rosanoff brought.
Meanwhile, when Dubois discloses his suspicions about Mata Hari to Shubin, the general laughs them off as ridiculous. However, Shubin has himself passed secret information to his lover Mata Hari, whom he is expecting for a private dinner. Rosanoff arrives unexpectedly, in case Shubin has further instructions before the pilot returns to Russia with more important dispatches. Upon learning of Rosanoff's mission, Mata Hari arranges for a confederate to steal the dispatches, photograph them and then return them undetected, while she keeps a puzzled, but delighted Rosanoff occupied.

Ex Output:
Who does not believe the exotic dancer could be a spy?

Ex Input:
Passage: As wildfire is a natural part of most ecosystems, plants that are indigenous to Yellowstone have adapted in a variety of ways. Douglas-fir have a thick bark which protects the inner section of the tree from most fires. Lodgepole Pinesthe most common tree species in the parkgenerally have cones that are only opened by the heat of fire. Their seeds are held in place by a tough resin, and fire assists in melting the resin, allowing the seeds to disperse. Fire clears out dead and downed wood, providing fewer obstacles for lodgepole pines to flourish. Subalpine Fir, Engelmann Spruce, Whitebark Pine, and other species tend to grow in colder and moister areas, where fire is less likely to occur. Aspen trees sprout new growth from their roots, and even if a severe fire kills the tree above ground, the roots often survive unharmed because they are insulated from the heat by soil. The National Park Service estimates that in natural conditions, grasslands in Yellowstone burned an average of every 20 to 25 years, while forests in the park would experience fire about every 300 years.About thirty-five natural forest fires are ignited each year by lightning, while another six to ten are started by peoplein most cases by accident. Yellowstone National Park has three fire lookout towers, each staffed by trained fire fighters. The easiest one to reach is atop Mount Washburn, which has interpretive exhibits and an observation deck open to the public. The park also monitors fire from the air and relies on visitor reports of smoke and/or flames. Fire towers are staffed almost continuously from late June to mid-Septemberthe primary fire season. Fires burn with the greatest intensity in the late afternoon and evening. Few fires burn more than 100 acres (40 ha), and the vast majority of fires reach only a little over an acre (0.5 ha) before they burn themselves out. Fire management focuses on monitoring dead and down wood quantities, soil and tree moisture, and the weather, to determine those areas most vulnerable to fire should one ignite. Current policy is to suppress all human caused fires and to evaluate natural fires, examining the benefit or detriment they may pose on the ecosystem. If a fire is considered to be an immediate threat to people and structures, or will burn out of control, then fire suppression is performed.

Ex Output:
Where is Mount Washburn?