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.

Input: Consider Input: Article: My first visit to London was one and a half years ago. It was a wonderful trip. I stayed in the city for three weeks, and I had many impressions. I visited all the famous places. I'd like to tell you about some of the places I visited in this beautiful city. First, I went to the Tower of London, and I want to say that it is a very interesting historical place. I found out that a long time ago, it was a prison. Later it became a castle for the royal family. Or maybe it is the reverse; I'm not sure, but later they left this place and lived in Buckingham Palace and Kensington Palace. I also enjoyed visiting the House of Parliament and Westminster Abbey, two very popular places for tourists. They are very old and beautiful. The Abbey is built in a kind of Gothic style; it is fantastic. In London, you can also enjoy nature. There are many parks such as Hyde Park, Green Park, and Holland Park. These parks are wonderful green, quiet places where you can relax and escape the noise of the city. Trafalgar Square is a popular place for students and other young people. You will find lots of pigeons there. If you have time, you can feed them and they will be very happy. You can buy special food for them, but be careful! Tons of birds are going to surround you if you feed them. Another very special place in London that I like is St. Paul's Cathedral which was designed by Sir Christopher Wren. I also was impressed with the museums in London. They're very popular. I found them interesting because you can learn about the history of England. I had a wonderful time in London. I really liked it because it is a city that is rich in history.
Answer: recall his/her first travel to London

Output: The writer writes this passage to _ .

Input: Consider Input: Article: For the British, the home is a private place in which he or she goes to hide away from the troubles of life. It is very seldom that one would be invited to a British person's home. It is rude to knock on a person's door if you are not invited. If you are invited, don't ask to see more than the downstairs that your British host invites you into. Never ask how much the house or any of the items in it cost. To the American, most of them want their home to be a place where they can entertain and share their lives with their friends. They may be delighted to give you a full tour of their houses. They may also be pleased when you show your interest and pleasure in their houses. Both British and American people will _ quite a bit of chat and a drink or two before the meal is served. After the first mouthful, you should say how delicious the food is and ask something about it. Remember, never eat with your mouth open and make very little noise while eating. It would be nice of you to help your host in any way. Maybe offer to pour some drinks or clear up after the meal.
Answer: never

Output: British people _ invite friends to their home.

Input: Consider Input: Article: Henry Ford was the first person to build cars which were cheap,strong and fast.He was able to se11 millions of models because he could produce them in large numbers at a time;that is,he made a great many cars of exactly the same kind. Ford's father hoped that his son would become a farmer,but the young man did not like the idea and he went to Detroit where he worked as a mechanic .By the age of 29,in 1892,he had built his first car.However,the car made in this way,the famous "Model T" did not appear until 1908-----five years after Ford had started his great motor car factory.This car showed to be so well-known that it remained unchanged for twenty years.Since Ford's time,this way of producing cars in large numbers has become common in industry and has reduced the price of many goods which would otherwise be very expensive.
Answer: cheap and strong
Output: Henry Ford was the man to built _ cars.