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.
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Question: Article: We were on the way from Hutchinson to Chicago for a short spring break. For many years I had wanted to take my family on the train. We all had been to Chicago four years ago, and the kids loved it. Chicago is one of my favorite cities, too, so the thought struck me again last fall to ride the train to Chicago. Of course, flying would have been faster. But I don't think flying is easier, especially these days, with all the security and waiting in lines at airports. Though we were tired in the middle of the night, the kids got on the train with the _ of this adventure. "We're moving," my son William shouted happily with big eyes as the train began to pull away from the Hutchinson station. I removed my shoes and lay down to try to finish my night's sleep. The sleeper car would have better enabled that, but the ordinary train seats were not too bad. An airline flight is a more miserable experience for me: not enough room, two hours of pain with my knees almost touching my chin, the hard seatback in front cracking my kneecaps with every move of the body planted in front of me. On the train I could almost outstretch all of my 6-foot-2-plus body in the generous legroom. The journey didn't feel at all as long as it was. We all found the train ride a joy. The car ride would have felt every minute of 13 hours. But on the train you are free to walk around, sit in the observation carriage for a while and enjoy the scenery out the windows, have a nice meal in the dining car, read a book, or play a board game. In short, the train is all about enjoying the trip, which isn't something I do so much when traveling by airline or by car, when the trip seems more of a mission to get there than an experience to enjoy along the way. Chicago offers much to do for a family. This time, getting there was half the fun.
Answer: Delighted.

Answer: Which of the following words best describes the whole family's feeling about the train journey?

Question: Article: Mark Twain was a famous American writer in his day. He liked to play jokes on his friends. One day one of his friends lost his wallet and asked Mark Twain to pay his train ticket for him. "But I don't have enough money to pay both your ticket and mine," Mark Twain said. The friend didn't know what to do. "We can do this," said Mark Twain." We can get on the train and when the conductor came to check the tickets , you can hide under my seat." Later, however, when the conductor came to check the tickets, Mark Twain gave him two tickets --- one for himself and one for his friend . Then he explained in aloud voice," My friend is a strange man. When he travels on a train, he does not like to sit on the seat." Of course everyone in the train looked at the poor friend under the seat and laughed at him loudly.
Answer: Because the friend lost his money.

Answer: Why did the friend ask Mark Twain to pay his train ticket for him?

Question: Article: Sales of crime novel The Cuckoo's Calling have rocketed since its author Robert Galbraith was unmasked as JK Rowling, according to The Bookseller. It said 17,662 hardback copies were sold between 14 and 20 July, up from just 43 copies the previous week, according to Nielsen BookScan data. The Cuckoo's Calling was the week's bestselling hardback novel, despite some booksellers running out of stock. The Harry Potter author was identified in a newspaper article last week. On a website Rowling said 8,500 English language copies had been sold in all forms, including e-books, before her unmasking. The author added that she had received two offers from television production companies. "The situation was becoming increasingly complicated, largely because Robert was doing rather better than we had expected him to," she said. "But we all still hoped to keep the secret a little longer. Robert's success during his first three months as a published writer (discounting sales made after I was found out) actually compares favourably with JK Rowling's success over the similar period of her career." However, the Bookseller reported the hardback had sold fewer than 500 copies in its three-month period on sale before the Sunday Times' expose. The recent sales were not enough to send The Cuckoo's Calling to the top spot in the official UK top 50, instead landing it in third place. The Rowling revelation coincided with the paperback release of The Casual Vacancy -- her first official post-Potter work--which sold 19,548 copies in the same week, making the book number two in the sales chart. Neither title managed to draw John Grisham's The Racketeer from the top of the chart, which shifted 24,222 copies -- a 19% drop on the previous week. Elsewhere on the Robert Galbraith website, Rowling has revealed the reason she chose her pen name. She said she picked Robert because US senator Robert F Kennedy was her "hero" and she had never used the name in one of her earlier books. "I can only hope all the real Robert Galbraiths out there will be as forgiving as the real Harry Potters have been," she wrote. A follow-up to The Cuckoo's Calling has been finished and should be published next year, the author added.
Answer: Book sellers can't cover any expense for the running out of the stock.

Answer:
What can we know about the sale of The Cuckoo's Calling?