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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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Article: Polar bears are born in dens on land and their mother stays with them for the whole winter without eating anything. The mother and the babies come out from the dens around March, _ from a long winter and must immediately go hunting to find food to stay alive. Now, the only hunting they know is to catch seals from floating ice in the open ocean. In March, polar bear mothers and babies have to swim from the land in Spitsbergen to the edge of the polar ice cap. Normally this is a short swim, since in March the polar ice cap is very close to the land, and the polar bears, and even the babies, are good swimmers. However, last year we saw that the polar ice cap had become smaller in size due to global warming. Swimming hundreds of miles, especially when they are hungry and have babies following them, is really hard, and many bears are dying because of starvation. The polar bear population in the Spitsbergen area was once threatened by hunters. In the 1970s, a ban on hunting was imposed and the polar bear population has been steadily increasing from just a few hundred to about 2,000 to 3,000. This was a great success story. However, now, because of global warming, the population is again in danger. If we do not stop making so much carbon dioxide, we will lose these beautiful animals forever. The polar bears are just one example of animals that have become endangered because of man's appetite for energy obtained by burning fossil fuels. All life on earth could be in danger unless we change our ways. What can we do? To reduce the amount of carbon dioxide in the air we must save and make energy without burning coal and oil. Instead, we can use the sun or the wind to generate electricity. We must also cut down on needless driving and turn off things that use electricity when we are not using them. In addition, we have to stop cutting down forests and start planting more trees.
Answer: To catch seals for food.
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Why do the bears swim to the edge of the polar ice cap?

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Article: Nanjing-style paper cutting is an important part of Chinese paper cutting. It is known for its different designs, simplistic but graceful shapes, finely cut lines and unique skills. Zhang Fanglin is a leading figure in the Nanjing-style paper cutting. Zhang was born in a paper-cutting family. He is the fourth generation to continue the family's paper-cutting skills. Taught by his father, he began to learn paper cutting in his childhood. In 1963 when he was only 14 years old, he started his artistic career in a local folk handicraft factory. Over the past decades, Zhang has created many works and developed excellent skills. In 1985, Zhang was admitted into Nanjing Municipal Fine Arts Company, creating and designing paper cuts. Throughout his artistic career, Zhang has absorbed characteristics and elements of various styles of paper cutting and created a large number of creative paper-cutting works. Thanks to his great contributions, he won many national prizes and was awarded the title of "National Master Artist in Handicraft Art". As a leading figure, Zhang Fanglin has been invited to more than 30 countries and regions around the world, showcasing his paper-cutting skills. In the 2010 Shanghai World Expo, Zhang showcased his new creations of gold foil-embedded paper cutting works.
Answer: A paper cutting artist.
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What is the passage mainly about?

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Article: Pure Yoga is devoted to serving the yoga community in Asia and beyond,offering a wide variety of classes such as Hatha Yoga,Hot Yoga,Yin Yoga Vinyasa,etc. Our yoga classes are offered and taught by nearly 200 professional yoga teachers. Private Yoga is also available for learners of all levels. Pure Yoga constantly invites world-known teachers to lead guest teacher workshops. Class Booking Class bookings can be made 2 days in advance of the class. It is important that you book your class in advance since some classes are more heavily attended than others. We also limit our class sizes so that they are not overcrowded. If a class you wish to take is full, we will place you on the wait list and inform you of an opening as soon as possible. To create the best experience for yourself and others,please follow these guidelines: No talking The yoga studio is a silent room. Please do not talk while in the studio and studio corridors . No eating Do not eat in the studio. No shoes Remove your shoes before entering the practice rooms. Keep your shoes in your locker .Shoe lockers are also available for rental. No mobile phones Turn your mobile phones off or to "vibrate" mode. Do not take phones into the practice rooms. Personal Belongings Daily lockers are not for overnight use. Locks from any daily lockers that are kept overnight will be cut.
Answer: professional yoga teacher.
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Who will teach general learners yoga?