In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
Example: Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
Example solution: Researchers did experiments on kids in order to find out _ .
Example explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

Problem: Article: Compulsive shoppers may have a new psychological excuse to blame for their wild shopping. Psychologists at the University of Canterbury in New Zealand are studying the "shop-till-you-drop" habit as a behavioral disorder similar to compulsive eating. Compulsive shoppers frequently buy more than they can afford or more than they need, and it causes them distress . "It becomes a problem when you are out of control," psychology lecturer Neville Blampied said. "When you are feeling bad and blue, what do you do? Some people eat chocolate cake and ice cream. Some people take the credit card and go out to the shop." Bank managers understand the problem because they have to deal with people who have to be persuaded to stop using their cards drawing money. Compulsive shopping was first discovered in 1915, although it was then known as monomania. Few studies have been done on the problem. An advertisement in a Christchurch paper, calling for people to take part in an experimental treatment program designed by Mr. Wilson, attracted 10 replies. But the problem, said Mr. Wilson, is "clearly not rare". He thinks that compulsive shopping should be treated with drugs. "As psychologists we are interested in non-drug treatments for behavioral difficulties," Mr. Wilson said. Compulsive eaters or shoppers get a kick from their habit. "Both activities provide an immediate kind of kick and you feel a bit better," he said. "You have long-term problems, but human beings are extremely good at not seeing long-term problems and are very sensitive to short-term benefits," he said. The aim of the treatment was to help people find better ways of managing their emotions. The program, consisting of 10 one-hour weekly lessons and two follow-up treatments, is loosely based on teaching stress management. "You often have to start to get people to correctly recognize their emotions. Not being able to know what you really feel weakens your ability to solve the problems connected with what's making you feel that way," Mr. Wilson said.
Answer: they win a prize
Solution: The compulsive shoppers will go shopping when _ .