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: The 115-year-old prestigious  Oxford Dictionary will now include popular new Chinese terms like"shanzhai" "youtiao" and "fangnu", as part of the modern Chinese language. As China plays a more and more important role in the world economy, the Chinese language is forever developing, attracting more attention from people who want to understand this ancient yet lively language. For instance, the word "shanzhai" is used to describe the countless knockoffs of iPhones or designer bags imprinted with Louis Vuitton logos. Another new term in the new edition is the word "fangnu", or a "mortgage slave" --a term used to describe the phenomenon in large cities where well-educated youth complain of a miserable existence due to the heavy burden of a home mortgage. All these new or often fashionable terms can be found in the new Oxford English -Chinese, Chinese-English dictionary that was unveiled in the recently concluded Beijing International Book Fair last week. The dictionary now is available for retail sales since the beginning of this month.This dictionary is the largest single volume English-Chinese, Chinese-English dictionary and contains 670,000 words and phrases after five years of preparation.Sixty editors from the Oxford University Press and its partner in China--the Foreign Language Teaching and Research Press--worked together on the project.According to Julie Kleeman, the dictionary's chief editor, most of the firm's editors were Chinese, while about one fourth were native-English speakers. "We don't want to make it florid , we want it to be modern and conversational...many of the words in the present dictionary are no longer in use," said Kleeman."The need for studying Chinese by foreigners today is totally different from decades ago...Precise, native and practical--that is our main advantage," she said. Kleeman said newer publications updates will be available only for the online version as language often changes too quickly for book versions to keep pace.The online version will also offer a Chinese phonetic pronunciation guide.The online version, allowing access via different platforms from the PC to the iPad, will be ready "as soon as possible", Kleeman said. 
 Answer: well-educated youth in China's big cities have difficulty buying houses.

Solution: According to the above passage, we learn that   _  .