In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Input: Consider Input: Article: It's hard to avoid looking like a fool on April Fool's Day. On April 1 each year, people play tricks on each other. These tricks are usually silly rather than mean. Classmates sometimes tie each other's shoelaces to their chairs.Teachers might hand out an impossibly difficult surprise test that scares students before they realize it's only a joke. Newspapers announce fake contests (such as "Win an elephant!") and report on fake stories (like "UFO" lands in New York City). Forget gifts, songs and special foods--those are for the other holidays of the year. On April Fool's Day, the only tradition is to laugh (and maybe to cause a little bit of trouble). One April Fool's Day, when I was in high school, a group of students in my class played a very clever and funny trick on the teachers. They bought some chickens and set them free in our school cafeteria. The chickens ran all round the school, in and out of classrooms and under our feet. Feathers were flying everywhere. Teachers began running after the chickens, trying to catch them. Finally, they caught four of them. But the chickens were wearing numbered tags around their necks, and the teachers discovered that they had only caught chickens No.1, 2, 3, and 5.Where was chicken No.4? The teachers looked and looked. They couldn't find another chicken. After a few hours, they realized that the students had played another joke on them: There were only four chickens in the first place! They've been tricked by the numbers on the chickens. It's been a long time since I was in high school, but that April Fool's Day remains one of my favorite memories from those years.
Answer: They wanted to play a trick on teachers.

Output: Why did students set chickens free?

Input: Consider Input: Article: Robert Spring, a 19 century forger ,was so good at his profession that he was able to make his living for 15 years by selling false signatures of Americans. Spring was born in England in 1813 and arrived in Philadelphia in 1858 to open a bookstore. At first he became rich by selling his small but real collection of early U.S. autographs . Discovering his ability at copying handwriting, he began imitating signatures of George. Washington and Ben Franklin and writing them on the title pages of old books. To lessen the chance of detection , he sent his forgeries to England and Canada for sale. Forgers have a hard time selling their products. A forger can't deal with a respectable buyer but people who don't have much knowledge in the field. Forgers have many ways to make their work look real. For example, they buy old books to use the aged paper of the title page, and they can treat paper and ink with chemical. In Spring's time right after the Civil War, Britain was still fond of the Southern states, so Spring invented a respectable maiden lady known as Miss Fanny Jackson, the only daughter of General "Stonewall" Jackson. For several years Miss Fanny's financial problems forced her to sell a great number of letters and manuscripts . Spring had to work very hard to satisfy the demand. All this activity did not prevent Spring from dying in poverty, leaving sharp-eyed experts the difficult task of separating his forgeries from the originals.
Answer: There was less chance of being detected there.

Output: Why did Spring sell his false autographs in England and Canada?

Input: Consider Input: Article: "Find a job you love, and you'll never work a day in your life." Do you agree with this old saying? Joanne Gordon does. She is the author of Be Happy at work and other books about careers . Gordon believes that about 30% of employees in North America do not like their jobs, and she thinks that is terrible. She wants to help people who do not feel satisfied with their jobs find work that is good for them. Joanne says, "There are no happy jobs, only happy workers." She believes that happy workers share three main characteristics. First, happy workers enjoy the daily activities of their jobs, and they look forward to the workday. Take Tony Hawk, for example. At age 14, he became a professional skateboarder. Now he is a businessman working on projects related to skateboarding--films and video games, but he still skates every day. He once said, "My youngest son's pre-school was recently asked what their dads do for work. My son said, 'I've never seen my dad do work.'" Tony agrees that his job doesn't look like work. He has found a way to spend each day doing a job he enjoys. Second, happy workers like the people they work with. Sally Ayote says, "I work with the coolest people in the world." She and her group cook for almost 1,200 people in Antarctica. Most of these people are scientists who are doing research. Sally loves to sit and talk with them. She says, "There is no television here, no radio, so I get to know the scientists and what they're studying." Sally thinks she has a great job, and the best part about it is the people. Third, happy workers know that their work helps others. Caroline Baron's work helps people who have had to leave their home countries because of war or other dangers. She is a filmmaker who started an organization called FilmAid, which shows movies in refugee camps around the world. Caroline believes that movies can be very helpful in these camps. For one thing, entertaining movies let refugees forget their troubles for a little while. Movies can also teach important subjects like health and safety. For example, in one camp, thousands of refugees saw a movie about how to get clean water. Caroline knows that is helping other people, and this makes her feel proud and happy about her work. Tony Hawk, Sally Ayote, and Caroline Baron all get great satisfaction from their work. Tony Hawk says, "Find the thing you love. If you are doing what you love, there is much more happiness there than being rich or famous." Joanne Gordon would agree. She encourages people to find something they enjoy doing, find people they like to work with, and find ways to help others. Then they can be proud of what they do, and they will probably be happy at work.
Answer: The workers who agree with the author's ideas.
Output: Who is the book, Be Happy at Work, written for?