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 input: 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 output: 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.
Q: Article: Japan's youth are losing interest in science and as a result, threatening the nation's industrial progress. According to Japan Science and Technology Agency, young Japanese are surrounded by high-tech devices , but are not interested in how they work. Japanese businesses have succeeded partly because they've a great many engineers. A drop in interest could lead to a decline in _ numbers and quality. "In the past, the young had a big interest in science and technology," said Hirano, director of the agency's policy department. There are two main reasons for the problem. The first is known as "black box syndrome" of modern technology. Electronic devices depend on tiny silicon chips , which can only be made in big factories, whose workings can't be seen by the eyes. The devices, unlike machines of the past driven by gears and wheels, are simply boxes. Young Japanese, brought up on video games and at home with computers, enjoy using modern technology, but this is a passive interest and different from the interest in how things work. "You need an active interest to get interested in science. This is declining in the young," said Hirano. About two-thirds of Japanese in their 20s use PCs, twice the number of those in their 50s. But only 40% of those in their 20s say they are interested in news about science and technology, compared to 60% of the 50 to 60 year olds. "Another reason for it is that life in modern Japan is too comfortable," he said. "A wealthy society reduces people's desire to modernize and develop their country. To a degree, you can't avoid this when the fruits of science and technology are fully developed." Similarly, science in Europe and the US has also suffered a lack of interest.
Answer: science is more difficult for young people to learn
A:
Japanese youth's interest in science is dropping probably because _ .