Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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
Solution: Researchers did experiments on kids in order to find out _ .
Reason: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

Now, solve this instance: Article: "My dream has come true.I have always wanted to be a Grand Slam champion." These are the words of the Chinese tennis player Li Na after she became the first Asian woman to win the Australian Open final on Jan.25th.2014. "People were saying I'm getting old.So this is a great success for such an old woman." the 32-year-old girl joked. Miss Li has a tattoo . She has dyed her hair many different color1s.And, at the 2008 Beijing Olympics, she told her fans to "shut up" when they got too noisy in their support. Li Na was born in Wuhan.She started to play tennis at the age of 6.She once recalled: "As a child. I suffered a lot because every day I had to wake up early to practice.After school I had to practice more.I didn't have time to play." Luckily, the strong girl didn't give up. thus making history for Chinese tennis time after time.Now the new champion is already thinking about winning another Grand Slam title."When you have one title, surely you will think about another," she says. not hiding her ambition. "Chinese people are so lacking in confidence on the tennis court.If there is a person like me who can prove we Chinese can do it, the other young players in China will feel the same." she said.
Answer: 1988
Student:
Li Na began to learn playing tennis in the year of _ .