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: A telescope , called Gaia, is being designed by astronomers in Europe, and it couldn't be more different from Pan-STARRS, which is another telescope being designed. While Pan-STARRS will be looking for asteroids and comets headed for Earth, Gaia will be looking at our entire galaxy . Gaia is designed to draw a map of the Milky Way, our home galaxy. Just as a map of your town gives you a picture of where things are located, Gaia's map of the galaxy will tell astronomers where the stars are. Over five years, Gaia will observe about a billion stars and other objects in our galaxy. Each object will be observed about 70 times. Gaia will be sent into space connected to a rocket. It contains two telescopes, each focused at a different angle . These two telescopes act like Gaia's "eyes". The reason why humans can see things in 3D is that we have two eyes focused on the same object, at slightly different angles. By using two telescopes like eyes, Gaia can produce the first 3D map of the positions of the stars it views. Gaia, which is to be sent into space in 2011, will be a powerful telescope. If you were to use it on Earth, for example, you could stand 600 miles away from your best friends and still get a clear picture of their hair. Gaia is one of more than a dozen telescopes being designed by scientists right now. The next generation of telescopes will reveal new parts of our universe that will seem surprising. The universe, with all its planets, stars and other strange objects, is a puzzle with pieces that we can see by using powerful telescopes.
Answer: 2 .
[A]: How many different angles can Gaia focus at each time?

[Q]: Article: Petroleumis a very important mineral. It gives us heat and light. It gives us power for our cars, planes, and ships. Also, it gives us power for machines of all kinds. How is petroleum formed? Scientists believe petroleum comes from the remains of plants and animals (Remains are what is left after a plant or animal has died.) What exactly is petroleum? Petroleum is a mineral that is a mixture of hydrocarbons. It is an oily liquid, which may be brown, green, or black in colors. The word "petroleum" comes from Greek. It means "rock oil". Crude (, ) oil is petroleum that comes directly from deep in the ground. It is then taken to a refinery. a refinery is a kind of factory to refine oil. At a refinery the crude oil is separated into many parts. From the refined petroleum we get important things, such as gasoline, kerosene, fertilizer, detergents and a lot of other useful things. In fact, there are thousands of such things that we can get. Petroleum really is of great value!
Answer: " Petroleum" is a German word.
[A]: Which of the following is Not true?

[Q]: Article: Mei Lun and Mei Huan have been the first giant twin pandas born in the US since 1987. The names of these twin male giant panda cubs were announced at Atlanta Zoo last year. Lun Lun, a 15-year-old giant panda, gave birth to the cubs on July 15, 2013. Zoo officials followed Chinese custom and named the brothers after waiting 100 days. Until then, they were simply known as "Cub A" and " Cub B". Mei Lun and Mei Huan are the first twin panda cubs to survive in the Unite States. "We're delighted to finally be able to place two youngsters with names. They have not only made a mark on the history of Atlanta Zoo, but also have made history in the US," Raymond B. King , the zoo's president and CEO, said in a statement. Atlanta Zoo teamed up with Good Morning America that month to put the pandas' names to a public vote. China's Chengdu Research Base of Giant Panda Breeding provided the choices of names. In just 13 days, 51,000 votes poured in on the show's website. Under a deal between China and the US, giant pandas originally from China are only lent to foreign zoos for scientific study for several years. Zookeepers at Atlanta Zoo are giving regular updates on the twins' progress in an online blog. Mei Lun and Mei Huan are the fourth and fifth offspring of Lun Lun and a male giant panda named Yang Yang. The pandas made their first public appearance in a US exhibit last fall. For the three months before their appearance, the online world had watched the twins grow strong and healthy. "We share this joy with our colleagues in China and with the cub's fans around the world," King said.
Answer: The US decided their names.
[A]:
How did the twins get their names?