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.

Ex Input:
Article: By Zhang Youlv (China Daily 09/29/2008)--A manned lunar landing is China's next target when the current three-stage space program ends in the next dacade. "When our manned space program is completed, we will travel even further," Wang Zhaoyao, deputy head of China's manned space program office and Shenzhou VII mission spokesman, told a briefing in Beijing three hours after China's third manned space mission was successfully concluded yesterday. "After comprehensively analyzing the general trend of the international development of manned space, as well as realities in China, we see a manned lunar landing as a both challenging and tactical field in global hi-tech," he said. "We believe it necessary for our country to do something in this field," Wang said. He did not give a specific date for a moon landing. Wang, however, said, "Experts believe this is 'very much needed' for research into relevant (closely connected) technologies to further China's achievements in space." The 68-hour Shenzhou VII mission featured a 25-minute spacewalk on Saturday. It was broadcast live and watched by millions throughout the country. The crew's landing at a site in the Inner Mongolia autonomous region was also carried live by national television. The entire mission was pronounced a complete success. Wang said the three astronauts, were transported to Hohhot, the region's capital, and would spend the evening there. "They will return to Beijing this morning," he said. "During the course of the mission, Russian experts provided strong technical support for the EVA spacesuits. The successful Sino-Russian cooperation for this flight created beneficial conditions for more intensive cooperation between the two sides in the future," Wang said. The mission's success has paved the way for completing the second stage of the program--building a space station before 2020. Before that, a space lab will be set up in 2010 with Shenzhou X, the country's next full-crew space journey.
Answer: No specific date.

Ex Output:
When will China's spaceship land on the moon?

Ex Input:
Article: Consumers at the Whale Inside Dark Restaurant are led by a waiter with night - vision Goggles . Inside Dark Restaurant in prefix = st1 /Beijing, a table of 30 diners was getting quarrelsome."I'm touching your head!"said one, like a talkative child. "Who just said that?"another replied. Such voices floated across the 90-plus-seat restaurant, but no one could see who was talking, except the waiters, who were equipped with military-grade night-vision goggles. In the new conceptual dining, restaurants are turning off the lights to focus attention on the food. The trend seems to have started inZurichand has since spread all over the world, with diners sitting in _ rooms and, lately, being served by waiters in night-vision goggles. The idea is that by depriving one sense (sight), other senses are heightened. Darkness has other benefits. ''Chinese people tend to be shy,'' said Chen Long, who owns Whale Inside Dark, which opened in January. ''People have found it easy to break the ice here.'' The first dark restaurant, which opened inZurichin 1999, had a simple intention. The goal ''was creating jobs for the blind and handicapped people,'' said the manager. The concept has been popular in Paris, London,Sydneyand elsewhere, offering new variations on sight deprivation, by which people can experience a lot in a completely dark condition. In Beijing, the Whale Inside Dark Restaurant is not only about heightening the sense of taste, but lowering social inhibitions . It is popular with Internet daters, who met on matchmaking Web sites that are spreading throughout China. Diner for two is about 225 yuan, or $29 at 7.76 yuan to the dollar. Eating in the dark is not without its troubles. Instead of family-style dining, food is served on single-serving plates. When each dish arrives, the server guides your hand to the plate and offers helpful tips like, ''This course is eaten with a spoon.'' The style seems to be working . ''People feel a lot more comfortable when they can't be seen by others,'' said Mr. Chen, who is opening a second branch in Shang-hai, ''Couples get to know each other without seeing other's faces.''
Answer: Dining in the dark

Ex Output:
What's the best title of the passage?

Ex Input:
Article: Once upon a time in a land far away, there was a wonderful old man who loved everything:animals, spiders, insects... One day while walking through the woods the nice old man found a cocoon of a butterfly. He took it home. A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no farther. Then the man decided to help the butterfly, so he took a pair of scissors and snipped off the remaining bit of the cocoon. The butterfly then emerged easily. But it had a swollen body and small, shriveled wings. The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, which would contract in time. Neither happened! In fact, the butterfly spent the rest of its life crawling around with a swollen body and shriveled wings. It never was able to fly. What the man in his kindness and haste did not understand was that the restricting cocoon and the struggle required for the butterfly to get through the tiny opening were Nature's way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon. Sometimes struggles are exactly what we need in our life. If we were allowed to go through our life without any obstacles, it would cripple us. We would not be as strong as what we could have been. And we could never fly.
Answer: The butterfly should spend more time practicing flying.

Ex Output:
In the story, what happened to the cocoon of the butterfly after the man's help?