Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
Solution: How many books are there in the British Library?
Reason: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

Now, solve this instance: Article: Believe it or not, there're always some people who like staying up too late. However, sleeping early can bring us many benefits. 1. Healthy heart. Staying up late in the night is a way to hurt your body with high blood pressure and cholesterol . These are the risks associated with the heart. 2. Reduce stress. A peaceful sleep in the night relieves physical and mental stress. It relaxes the body and mind. With insufficient sleep you're risking your health with heart attacks and other diseases. 3. Improve memory. Sleeping early lets your mind arrange the thoughts well. Waking up early with a fresh mind will regain all of it. 4. Protect you from diseases. By sleeping late in the night you're only stressing yourself, which will increase the blood pressure and cholesterol levels. So sleep early and let your body keep the pressure levels constant. 5. _ . Breakfast is very important to start the day. Most of the time as we wake up late we miss it. 6. Positive performance. Sleeping continuously for at least 7 hours in the night is necessary. Inadequate sleep will limit your ability to think creatively, handle stress and concentrate. 7. Help metabolism . Our body needs to send away all the unwanted waste. Sleeping through the day till noon will disorganise the exile . We need to eat and sleep on time to keep energy. 8. Reduce the risk of cancer. Sleep in the dark. Light in the night reduces the melatonin level which's supposed to cause sleep and prevent the risk of cancer. 9. Increase energy. Sleeping early will let you complete your 7 hours of sleep and make you fresh the next morning. It gives you the energy to perform better. 10. Keep weight. When you sleep too late your organism is disturbed. Sleeping for less than 7 hours a day is an invitation to being overweight.
Answer: A peaceful sleep.
Student:
What kind of sleep can relieve the physical and mental stress?