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.

Q: Article: The idea of sailing west to reach the riches of the East Indies and the Asian mainland was much in fashion with cultured Europeans during the late fifteenth century. Learned people agreed that the earth was round: their only questions were how long and how dangerous would be a trip to reach the Orient. Christopher Columbus, the son of an unknown weaver, and himself a weaver of ambitious dreams, made his historic voyage to the New World in 1492. He didn't go to school very much, but be learned to read and write Spanish during his travels. He also taught himself Latin because all the geography books were written in Latin. Sailing with a tiny fleet of three ships, the Santa Maria and two smaller ships, the Pinta and the Nina and a crew of ninety sailors, be found the thirty-three-day crossing easier than his nearly-decade-long effort to find royal sponsors willing to support it. The trip drew not only on his own skills as an expert ship's captain, but also on his ability to plan such an expedition, obtain governmental approval and financing, and finally, demonstrate its success so that such explorations could continue. He tried for years to get King Ferdinand and Queen Isabella to supply him with ships and money. Finally they agreed, but he made more demands. He wanted to be made a knight, admiral of the Ocean Sea. He wanted to be the viceroy and governor general of all lands he would discover. Also he wanted one-tenth of everything he found of value in the new lands. The explorations that followed Columbus-those of Cabot, Verrazano, Cartier, and many others-benefited from a new maritime technology borrowed from Arab sailors and from a variety of new vessels (,) such as the light-weight caravels employed by Columbus. Sailors also perfected sails and various types of riggings that gave ships added stability and greater maneuverability on the open seas. And when leaving sight of the coast, new navigational aids-charts, compasses, and astrolabes-permitted them to determine their position with some, though not perfect, accuracy. Columbus himself made a total of four voyages to the New World but he did not become rich as he had hoped. At the end of his life he only had a pension the king and queen had given him because he was the first to reach the New World. He spent the last few months of his life in bed because of the pain of arthritis . Columbus not only discovered a New World, but led the way for other explorers.
Answer: The oriental countries.

A: What was the dream destination of Europeans in the late fifteenth century?
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Q: Article: When Juliet was a child, she often went to the city park and played with her friends. On a sunny morning, when Juliet came to the park with her mum, she looked around and felt very unhappy. "What's the matter, dear?" asked her mum. Juliet replied, "Mum, there's so much trash on the ground." Juliet's mum looked around. There was paper, boxes and glass bottles everywhere. "What can we do?" asked Juliet. "I'm sure you will think of something," said her mum. As soon as Juliet and her mum went home, Juliet painted a picture of the park and wrote a sign in large black letters at the top of the picture. The sign read "PLEASE KEEP OUR PARK CLEAN". Later, she took plenty of bags and went back to the park with her mum. Juliet put up her picture on a big trash can . "Will you help me pick up the trash, Mum?" Juliet said as she handed her mum a bag. "I sure will," replied her mum. The children at the park ran over to see what was going on. Juliet handed them each a bag. "Let's clean this place up," said Juliet. Then they began to pick up the trash, talking and laughing. Soon all the bags were full. "We need to come back another day. There's still some trash on the ground, but the park looks much better," said Juliet. Her mum said, "So it does. _ "
Answer: Because there was too much trash at the park.

A: Why was Juliet sad?
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Q: Article: Commodities are basic materials that are used and traded worldwide. The price of commodities helps determine how much a business can charge for a product and the profit it can make. Commodity prices have reached a two-year high since falling sharply during the world financial crisis. Hard commodities are materials like iron ore, oil and gold. Agricultural products are soft commodities. These include wheat, cotton and rice. Economic measures show the world economy is recovering. China and India, for example, have reported strong growth in manufacturing . Developed nations have had slower growth. John James, a business professor at Pace University, says demand in developing economics can push up prices for commodities like oil and iron are used for making steel. But, he says, changing currency values can also influence prices. Gold prices have reached record levels in recent months. That means gold dealers must pay more for the commodity now than they did only a year ago. That affects current prices. Not surprisingly, manufacturers want some control over the prices they pay for commodities. Futures contracts are agreements between a buyer and a seller to exchange something at a set price at some time in the future. These contracts let buyers lock in a price for basic materials. But some traders in futures markets only want to make a profit. They buy or sell contracts depending on the direction they believe prices will go. These speculators get _ when prices rise, or fall, too quickly. The United States, Germany and France are looking into ways to limit this kind of trading. Some experts say exporting commodities is not a good path to long-term economic growth. The United Nations recently reported that the least developed countries must change their economics to provide good incomes for their citizens. A UN official says the least developed countries need to cut dependence on commodities and manufacture products for export. He says only this will let them gain from world trade.
Answer: Growth in manufacturing in developing nations.

A:
What is the leading factor for this round of growth of commodity prices?
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