You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

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?
Why? In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

New input: Article: This story is about a 92-year-old, short, well-behaved and proud lady. She is fully dressed each morning by eight, with her hair fashionably done and makeup perfectly applied, even though she is totally blind. She is moving to a nursing home today. Her husband of 70 years recently passed away, making the move necessary. After many hours of waiting patiently in the hall of the nursing home, she moved to the elevator, I provided a visual description of her tiny room, including the eyelet  sheets that had been hung on her window."I love it," she stated with the enthusiasm of an eight-year-old girl having just been presented with a new puppy. "Mrs. Jones, you haven't seen the room yet. Just wait." "That doesn't have anything to do with it," she replied. "Happiness is something you decide on ahead of time. Whether I like my room or not doesn't depend on how the furniture is arranged, it's a decision I make every morning when I wake up." "I have a choice; I can spend the day in bed recounting  the difficulty I have with the parts of my body that no longer work, or get out of bed and be thankful for the ones that do. Each day is a gift, and as long as my eyes open I'll focus on the new day and all the happy memories I've stored away, just for this time in my life. Old age is like a bank account, you withdraw  from what you've put in. So, my advice to you would be to deposit  a lot of happiness in the bank account of memories. Thank you for your part in filling my memory bank. I am still depositing." 
 Answer: Her husband has passed away.
Solution:
Which is the direct reason for the lady's move to a nursing home?