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: Beautifully cut grass, elegant   white clothes, cheering fans and exciting matches make Wimbledon, in London, the home of tennis.     Last Monday, the famous British tournament   opened at the All England Lawn Tennis Club. It is the third Grand Slam tournament of the tennis season. Wimbledon comes after the Australian Open and the French Open, and is followed by the US Open.     As the oldest tennis tournament in the world, Wimbledon is famous for its special rules and traditions. The players' clothing, including their shoes, must be entirely white.     In 2002, the Russian player Anna Kournikova was forced to change from her black shorts into another pair on court. Between 1988 and 1990, US legend Andre Agassi refused to play because of the all-white rule.     The UK's unpredictable summer weather is part of the tournament. If it begins to rain, players and fans have to wait patiently for it to stop. Then, they cheer when the covers come off the grass courts.     Many British fans do not think the courts should have a roof, because they want to keep tradition.     Wimbledon is not just famous for great tennis matches. Fans like to eat strawberries and cream while watching. Every year 27,000 kilos of strawberries and 7,000 liters of cream are eaten.     Many British people are very proud of the tournament, but disappointment is another Wimbledon tradition for loyal   fans of British players. Wimbledon has not been won by a British woman since 1977, and not by a British man since 1938. 
 Answer: The US Open.

Answer: Which of the following tournaments is the last to be held?


Question: Article: Mail was usually carried west on ships that sailed around the bottom of South America and then north to California.That could take several months.   So, in eighteen fifty-seven, D.C.Lawmakers in Congress  in Washington wanted to make it possible to send mail all the way across the United States by land.Congress offered to help any company that would try to deliver mail overland to the West Coast. A man named John Butterfield accepted this offer. He developed plans for a company that would carry the mail--and passengers, too.  Congress gave John Butterfield six hundred thousand dollars to start his company. In return, he had to promise that the mail would travel from Saint Louis, Missouri, to San Francisco, California, in twenty-five days or less.  It was not possible to travel straight through because of the Rocky Mountains and the deep snow that fell in winter. So the stagecoach  would travel south from Saint Louis to El Paso, Texas, then over to southern California, then north to San Francisco. The distance was about four thousand five hundred kilometers. Two hundred of these stations were built, each about thirty-two kilometers apart. The workers were to quickly change the horses or mules whenever a stagecoach reached the station. There could be no delay. Each stagecoach was to travel nearly two hundred kilometers a day. One hundred stagecoaches were built and painted red or dark green. They were the most modern coaches that money could buy. They were designed to hold as many as nine passengers and twelve thousand pieces of mail. The seats inside could be folded down to make beds. Passengers either slept on them or on the bags of mail.  The cost would be one hundred fifty dollars to travel from Saint Louis to San Francisco. If a passenger was not going all the way, the cost was about ten cents a kilometer. The passengers had to buy their own food at the stations. The stagecoach would stop for forty minutes, two times a day.  The company warned passengers about the possible dangers. A poster said: "You will be traveling through Indian country and the safety of your person cannot by granted by anyone but God." 
 Answer: The history of the first stagecoaches carrying mail to the American West.

Answer: What is the passage mainly about?


Question: Article: Ariau Amazon Towers The Ariau Amazon Towers hotel lets you sleep in a tree house. Eight towers make up this hotel that offers over 300 rooms. If you really want to get into the spirit, book the Tarzan Suite which is large enough for a big family. You'll be thirty feet up in the air and can travel between the towers through their wooden walkways. Prices: starting at $300 one night for each person for a regular room and going all the way up to $3000 for the Tarzan Suite. For more information, visit the website: [Link] The Ice Hotel Every winter in Jukkasjarvi, Sweden, a special kind of hotel called the Ice Hotel is built. Each year, world-famous artists are invited to design and produce works of art from the ice, many of which can be found in the rooms. You'll have your choice between hot or cold rooms, but you will be well advised to stay at least one night in a cold room for a true experience. Prices: starting at $318 one night for each person for either a cold room or a warm one. For more information, visit the website: [Link] Propeller Island Propeller Island City Lodge is a very special hotel that was designed by a German artist. Each room provides you with the possibility of living in a work of art. Every single piece of furniture in the thirty rooms of the hotel has been hand-made and each room is completely different. You'll be able to choose a room based on your own personal tastes. Prices: starting at just $91 a night, and an additional person for only 20 extra dollars. For more information, visit the website: [Link] For information about other cool hotels in the world, visit the website: [Link] 
 Answer: You can sleep in tree houses.

Answer:
What is special about the Ariau Amazon Towers hotel?


