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: I was catching a later flight to St. Louis, then on to Minnesota. A couple of seats in front and the aisle over sat a very pretty lady. She smiled back at me, I smiled at her noticing her pretty dress. The rest of the flight was uneventful, but as I was getting off the plane I noticed her again standing by the prompters seeing what flight she was to take and what gate. I stood beside her looking for my gate, and flight number. I commented to her that I had seen her on the flight and she had on a pretty dress. She said "Thank you", I asked what flight she was taking? She said to "Phoenix". I looked and she had a two-hour _ , I also had a two and a half hours layover and asked her if she would like to go to the cafeteria for something to eat or drink. She said "Sure". We introduced ourselves on the way, and she told me that her name was "Phyllis". I laughed and said "my name is Phyllis also". As we sat in the booth she began telling me that she had been told she was dying of cancer and had less than 6 months to live. She was on her way to visit her children and grandchildren before she began taking treatment. She then told me that she had never flown before and she had prayed a specific prayer. She was afraid she would get lost at the airport and not be able to find her way to the gate, and didn't know what she was going to do for the two hours she was there. She prayed, that someone would meet her at the gate and stay with her until she left the airport. She then asked me "Are you an Angel God has sent"? No, I assured her I was no angel, but did God use me to answer her prayer? Yes.
Answer: At the St. Louis Airport.
Solution:
Where did the writer notice the lady at first?