Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Ex Input:
In the 19th century, a Grande Dame (Jeanne Moreau) summons The Brothers Grimm to her palace, where the brothers discuss their interpretation of the Cinderella story and notice a painting displayed in the room. The Grande Dame shows the brothers a glass slipper and tells them the story of Danielle de Barbarac, the true story of Cinderella. In 16th-century France, widower Auguste de Barbarac (Jeroen Krabbe), father of eight-year-old Danielle, marries Rodmilla de Ghent (Anjelica Huston), a wealthy baroness with two young daughters, Marguerite and Jacqueline, but he dies of a heart attack shortly afterwards. Before dying, Auguste's last words are directed to Danielle, which causes the Baroness to envy Danielle and treat her miserably for the next ten years. While Marguerite (Megan Dodds) is hostile and cruel to Danielle, Jacqueline (Melanie Lynskey) is kinder and more respectful to her, though she often stays out of the crossfires to keep the peace. By the time Danielle (Drew Barrymore) is eighteen, the estate has fallen into decline, as the Baroness has no interest in farming and wishes to get back to court as soon as possible. Danielle has been reduced to a servant in her own home, waiting on her stepmother and stepsisters, and clinging to her father's last gift, a copy of Thomas More's Utopia. While collecting apples, Danielle sees a man stealing her father's horse and unseats him with an apple. When she recognizes he is Prince Henry (Dougray Scott), she abases herself. He gives her a bag of gold in exchange for her silence. She decides to use the money to rescue their servant, Maurice (Walter Sparrow), whom the Baroness has sold to pay her debts. Henry's escape from the duties of court is foiled when he encounters a band of gypsies robbing an old man. He learns that the old man is Leonardo da Vinci (Patrick Godfrey), who has been summoned to court. Henry chases a thief and returns the Mona Lisa to da Vinci, then returns with him. Meanwhile, Danielle dresses as a noblewoman and leaves to buy back Maurice, but the guards refuse, saying he is being deported to the Americas. She argues for his release and, when Henry overhears, he orders Maurice's release. Intrigued by Danielle's mysterious identity, and amazed by her eloquence and passionate pleas, he begs for her name. Danielle gives Henry the name of her mother, "Comtesse Nicole de Lancret", who died giving birth to Danielle. King Francis (Timothy West) and Queen Marie (Judy Parfitt) tell Henry that he must choose a bride before the upcoming masquerade ball, or he will have to wed the Spanish princess Gabriella. All the noble families receive an invitation and Danielle initially believes she is included. When collecting truffles, she meets Henry by the river in the company of da Vinci. Henry and Danielle engage in a lively debate before Danielle runs off after she notices Jacqueline searching for her. Henry invites her to visit the library of a nearby monastery. On the way home, they are ambushed by the gypsies, who are amused by Danielle's outrage and agree to release her with whatever she can carry. When she picks up Henry and begins to walk away, the gypsies offer them a horse. Henry and Danielle spend the night at the gypsy camp, sharing their first kiss and arranging to meet again. The next morning, Danielle catches the Baroness and Marguerite stealing her mother's dress and slippers for Marguerite to wear to the ball. After Marguerite insults Danielle about her mother's death, she punches Marguerite in the face and chases her around the manor until Marguerite threatens to throw Utopia into the fireplace. Danielle returns her mother's slippers to the Baroness in exchange for the book but Marguerite burns it in the fire anyway in an act of spite. After Danielle is punished by whipping, Jacqueline tends to her wounds and condemns Marguerite for insulting Danielle's deceased mother. When Danielle meets Henry later, she wishes to tell him the truth, but is afraid he will reject her after he confesses his love. During

Ex Output:
who plays Jacqueline?


Ex Input:
In the mid 1900s, people were startled to see the Cuyahoga River in Cleveland, Ohio, burst into flames! The river was so polluted with oil and other industrial wastes that it was flammable. Nothing could live in it. You can see the Cuyahoga River in Figure 21.16 Disasters such as rivers burning led to new U.S. laws to protect the water. For example, the Environmental Protection Agency (EPA) was established, and the Clean Water Act was passed. Now, water is routinely tested. Pollution is tracked to its source, and polluters are forced to fix the problem and clean up the pollution. They are also fined. These consequences have led industries, agriculture, and communities to pollute the water much less than before. Most water pollution comes from industry, agriculture, and municipal sources. Homes are part of the municipal source and the individuals and families that live in them can pollute the water supply. What can you do to reduce water pollution? Read the tips below. Properly dispose of motor oil and household chemicals. Never pour them down the drain. Also, dont let them spill on the ground. This keeps them out of storm sewers and bodies of water. Use fewer lawn and garden chemicals. Use natural products instead. For example, use compost instead of fertilizer. Or grow plants that can thrive on their own without any extra help. Repair engine oil leaks right away. A steady drip of oil from an engine can quickly add up to gallons. When the oil washes off driveways and streets it can end up in storm drains and pollute the water supply. Dont let pet litter or pet wastes get into the water supply (see Figure 21.17). The nitrogen they contain can cause overgrowth of algae. The wastes may also contain bacteria and other causes of disease. Water treatment is a series of processes that remove unwanted substances from water. The goal of water treatment is to make the water safe to return to the natural environment or to the human water supply. Treating water for other purposes may not include all the same steps. Thats because water used in agriculture or industry may not have to be as clean as drinking water. You can see how water for drinking is treated in Figure 21.18. Treating drinking water requires at least four processes: 1. Chemicals are added to untreated water. They cause solids in the water to clump together. This is called coagulation. 2. The water is moved to tanks. The clumped solids sink to the bottom of the water. This is called sedimentation. 3. The water is passed through filters that remove smaller particles from the water. This is called filtration. 4. Chlorine is added to the water to kill bacteria and other microbes. This is called disinfection. Finally, the water is pure enough to drink. Conserving water means using less of it. Of course, this mostly applies to people in the wealthy nations that have the most water and also waste the most. Irrigation is the single biggest use of water. Overhead irrigation wastes a lot of water. Drip irrigation wastes a lot less. Figure 21.19 shows a drip irrigation system. Water pipes run over the surface of the ground. Tiny holes in the pipes are placed close to each plant. Water slowly drips out of the holes and soaks into the soil around the plants. Very little of the water evaporates or runs off the ground. Some communities save water with rationing. Much rationing takes place only during times of drought. During rationing, water may not be used for certain things. For example, communities may ban lawn watering and car washing. People may be fined if they use water in these ways. You can do your part. Follow any bans where you live. Its easy to save water at home. If you save even a few gallons a day you can make a big difference over the long run. The best place to start saving water is in the bathroom. Toilet flushing is the single biggest use of water in the home. Showers and baths are the next biggest use. Follow the tips below to save water at home. Install

Ex Output:
process in water treatment in which small particles are separated from water


Ex Input:
Euler's identity is named after the Swiss mathematician Leonhard Euler.

Ex Output:

What is Euler's identity named after?


