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: Many people believe Henry Ford invented the automobile  . But Henry Ford did not start to build his first car until 1896. That was eleven years after two Germans developed the world's first automobile. Many people believe Henry Ford invented the production line that moved a car's parts to the worker, instead of making the worker move to the parts. That is not true, either. Many factory owners used methods of this kind before Ford. What Henry Ford did was to use other people's ideas and make them better. And he made the whole factory a moving production line. In the early days of the automobile, almost every car maker raced his cars. It was the best way of gaining public notice. Henry Ford decided to build a racing car. Ford's most famous race was his first one. It was also the last race in which he drove the car himself. The race was in 1901, at a field near Detroit. All of the most famous cars had entered, but only two were left: the Winton and Ford's. The Winton was famous for its speed. Most people thought the race was over before it began. The Winton took an early lead. But halfway through the race, it began to lose power. Ford started to gain. And near the end of the race, he took the lead. Ford won the race and defeated the Winton. His name appeared in newspapers and he became wellknown all over the United States.Within weeks of the race, Henry Ford formed a new automobile company. In 1903, a doctor in Detroit bought the first car from the company. _ was the beginning of Henry Ford's dream. Ford said: "I will build a motor car for a great number of people. It will be large enough for the family, but small enough for one person to operate and care for. It will be built of the best materials. It will be built by the best men to be employed. And it will be built with the simplest plans that modern engineering can produce. It will be so low in price that no man making good money will be unable to own one." The Model T was a car of that kind. It only cost $850. It was a simple machine that drivers could depend on. Doctors bought the Model T. So did farmers. Even criminals. They considered it the fastest and surest form of transportation. Americans loved the Model T. They wrote stories and songs about it. Thousands of Model T's were built in the first few years. 
 Answer: To draw public attention.

Answer: Why did Henry Ford take part in the 1901 car race?


Question: Article: Sitting at a desk in a classroom all day can be pretty boring. The teachers at Ward Elementary in Winston -Salem,North Carolina ,picked up on that and traded in their students' desks for exercise bikes as a part of their Read and Ride program! The Read and Ride program began five years ago.One classroom has enough bikes for every student in any given class,and throughout the day teachers bring in their students to the room to ride them and read their books. Even regular classrooms have one bike in the back of each room for students who just can't sit still to use to help them burn energy in a good way. Students love being more active! Teachers enjoy seeing students eager to read.Parents appreciate stronger,smarter children.Headmasters value this effective and cost-free program."Riding exercise bikes makes reading fun for many kids who get frustrated when they read.Thus,they have a way to release that frustration while they ride,"said Scott Ertl,who started the program."As we can see,everyone wants to promote literacy and lose weight! But many students who are overweight struggle with sports and activities since they don't want to always be the last or lose with others watching on the playground.On exercise bikes,however,students are able to exert themselves at their own level--without anyone noticing when they slow down or take a break." As it turns out,not only are the bikes helping the students burn calories,they're also helping them learn better and stay focused.At the end of the school year the school analyzed testing data and found that students that spent more time reading and riding did more than twice as well on reading tests than their fellow students who spent the least time in the program. 
 Answer: To help the overweight students keep fit.

Answer: Why did the teachers start the Read and Ride program?


Question: Article: With America's national debt continuing to climb, Congress is constantly debating ways to save money. The Dollar Coin Alliance, a lobbying group, says billions could be saved if dollar coins were used instead of paper bills. But many people won't use them. The U.S. government tried to push dollar coins again in recent years, but then suspended almost all production in 2011. American likes paper dollars, but Jim Kolbe, co-chairman of the Dollar Coin Alliance, thinks switching to the coin is worth it. "The coin does cost more to produce, roughly on the neighborhood of 17 cents versus the 5 or 6 cents that a paper dollar costs to produce," he said. "However, the coin lasts 35 years, and it's made of mostly recycled metals, and the paper has to be produced from new materials, and we shred 3 billion of those every year because they wear out." For years, the former Arizona congressman has been pushing legislation that would prop up the dollar coin by phasing out the greenback -- a move that has met resistance from both politicians and the public. But today, he said, _ and a recent poll indicates 61 percent of Americans like the idea. "When they learn of the savings that can be involved with this, they will support the idea of substituting the coin for the paper dollar," he said. Major savings Kolbe points to a study by the Government Accountability Office, which investigates how the government spends taxpayer dollars. The GAO estimates taxpayers would save more than $4 billion over 30 years, and that figure could be much higher. That appeals to taxpayer Christy Thompson, who said, "I'd probably say, yes, we need to do it." But plenty of people aren't convinced, including Kim Doering of Alexandria, Virginia. "It's easier to carry the paper bill than a bunch of coins. They're louder; they're heavier in your pocket," she said. Washington, D.C. restaurant owner Sue Fouladi doesn't like the idea of having more dollar coins in her cash register. "It's very inconvenient," she said. "If I don't have a choice, then I'll do it, but I'll be a very unhappy person." Adding to the problem is that the gold- and silver-colored metal coins are about the same size as the 25-cent quarter. Robert Blecker, an economics professor at American University in Washington, says the dollar coins should be a different size and thickness. "And if we can design a dollar coin that's not so big and bulky, probably Americans would like it better," he added. But that doesn't bother college student Emily Sturgill. "Sometimes they fit into your pocket easily and you don't have to worry about them slipping out, like a dollar bill would if you brought your keys or your phone out," she said. 
 Answer: They are produced from new materials.

Answer:
Which of the following is the advantage of dollar coins according to the passage?


