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 Q]: Article: Like every other Olympics, the London 2012 Olympics will depend upon thousands of volunteers to help with the smooth running of the event. To show the importance of the role, London 2012 volunteers are to be called 'Game Makers'. Lord Coe has said recently: "London 2012 is relying on brilliant Game Makers to help us create a great Olympic and Paralympic Games. " London 2012 Olympics volunteers will provide the face of London 2012, working behind the scenes and making sure the games are as well organized, efficient and, most importantly, as enjoyable as possible. Despite the hard-work and often unsociable hours required of volunteers, applications to be considered as a Game Maker were unprecedented with all the 70, 000 available positions applied within days. But, for those still interested in helping out during 2012 and being in the middle of the action, there are still a lot of opportunities available. If you were one of those who missed out on the chance of becoming London 2012 volunteers, you can now apply to be one of the 8, 000 London Ambassadors . This important role involves greeting fans from all over the world, welcoming them to the fantastic capital city of London and providing a friendly face as well as help, advice and a good old traditional warm British welcome. The view of London most visitors take away with them after the 2012 Olympics will mostly _ the volunteers and ambassadors, so these roles play a very important part in the process of making the UK a great place to travel to. Becoming a London Ambassador is a brilliant way to be involved with the London 2012 volunteers scheme and become a part of what should be an historic summer.
Answer: They play an important role in the London 2012 Olympics.
[EX A]: Why are London 2012 volunteers called "Game Makers"?

[EX Q]: Article: Mark Twain is a name not usually connected with Broadway , but now his play "Is He Dead" will receive its first public performance on November 29. "Is He Dead" was written by Mark Twain in 1898 but was never performed. It was rediscovered in 2002 by Shelley Fisher Fishkin, an English professor and director of the American Studies Program at Stanford University. It was published the following year by the University of California Press. The story is about a group of poor artists who fake the death of their friend in order to increase the value of his work. "Is He Dead" is set in France in the 1840s and centers on the French painter Jean-Francois Millet. "Millet was probably the most popular European painter in the United States in Twain's lifetime," Fishkin said in a telephone interview. "Americans greatly admired him because he focused on the life of the common man and the common woman." According to Fishkin, "Is He Dead" is a satire about how value is created in the art world. Twain wrote the play when he was coming out of the hardest time of his life.
Answer: A trick played by a group of poor artists.
[EX A]: What's "Is He Dead" about?

[EX Q]: Article: The 48-year-old photographer and adventurer with his trademark black and white beard and shoulder-length hair is also an environmentalist devoted to protecting the source of the Yangtze River.And he likes his new nick-name, "garbage cleaner at the source of the Yangtze River". Yang Xin , is the founder of Green River, one of the country ' s biggest non-govemmental organizationsto protect the country's major rivers. The Yangtze River begins from glaciers in the Tanggula Mountains on the Qinghai-Tibet Plateau. Garbage was rarely seen in the area about 20 years ago, Yang said, as local nomadic people ledtraditional self-sufficient lives, living in tents. Thanks to increasingly convenient transportation, they ' ve started to use modern products packed in plastics, which can ' t degrade naturally. "They don' t have a waste management system and just throw rubbish away like before. So tons of garbage are left on the grasslands and river ways," said Yang. He founded a group with the purpose of dealing with garbage such as plastic bottles, batteries, lunch boxes and so on. In 1997, Yang and his group founded the Sonam Dhargye Nature Preservation Station in the Hoh Xil Nature Reserve, in memory of the anti-hunting hero who sacrificed his life to protect Tibetan antelopes.
Answer: Because he is devoted to the care for the Yangtze River.
[EX A]:
Why does Yang Xin get his nickname "garbage cleaner at the source of the Yangtze River " ?