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.

Let me give you an 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.
The answer to this example can be: How many books are there in the British Library?
Here is 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.

OK. solve this:
Article: Mr. Harris used to work in Dover, but then he changed his work, and he and his wife moved to another town. They did not have many friends there, but they soon met a lot of interesting people, and after a few weeks, they often went to dinner or to parties at other people's houses. Then Mrs. Harris said to her husband, "We've been to a lot of other people's houses, and now we must invite them to our house, mustn't we?" "Yes, certainly," answered her husband, "A big party will be the easiest thing, won't it? Then we can start to invite people to dinner in small numbers next month." So Mrs. Harris said, "Yes, I'll invite all our friends here to a big party on 5th December." "How many will that be?" Mr. Harris asked. "Don't invite too many." Mrs. Harris was beginning to write the invitations when her husband saw that she was writing, "Party. 6.30 to 8.30 p.m." "That isn't very nice, is it?" he said. "You're telling our guests that they must go at 8.30." So Mrs. Harris just wrote "Party. 6.30 p.m." A lot of guests came, and they all had a good time, so they did not go home at 8.30. In fact they were still there at mid-night when the door bell rang and a policeman arrived. He said, "You must stop making a noise, because someone has complained." Mr. Harris said he did not want to quarrel with the policeman, so everyone went home. They were sorry to have to go. When Mr. and Mrs. Harris were alone again, she said to him. "That was a surprise, wasn't it? Who complained about the noise?" "I did," Mr Harris answered in a tired voice.
Answer: Mr. Harris changed his work.
Answer:
Why did Mr. Harris and his wife move to another town?