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: Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two kilograms. The robot is designed to snake through dark, narrow air conditioning ducts   and clean them.A pair of LEDs fitted on the robot light up the dirty scenery, so _ can be captured   by a camera. In order to control it more easily, Mr. Azad chooses to fix DuctBot on wheels.The robot can clean off lots of dirt, as well as dead pigeons and insects.Keeping indoor air in good quality and monitoring carbon-dioxide levels in buildings with central air conditioning is a challenge.It is important in some places where clean air can mean a difference between life and death, such as hospitals.Dirty air has a bad influence on people's health. EPSCO, a Dubai-based company which specializes in improving indoor air quality, read about Mr. Azad's invention in a national newspaper after he had won an international robotics competition.EPSCO had cleaning equipment, but it needed someone to get into those ducts to do the dirty, dangerous work.Across India, for example, the task still falls to children.They are small enough to go through those ducts. In 2005, Mr. Azad who was still at university decided to do something about it.Six years later his own company, Robosoft Systems, has Bluestar, EPSCO and the Indian Navy, some leading air condition makers, as partners. Mr. Azad and his ten employees are currently exploring robot designs to examine oil tanks or sewage  pipes.Their biggest challenge is to make the robots user-friendly enough.Mr. Azad hopes that the robot could eventually be operated not by engineers but by workers.There will be lots of difficulties they need to overcome in the future. 
 Answer: It is designed to move like a snake in the ducts.
[A]: What can we learn about Ductbot?


[Q]: Article: Have you ever been to the following places? If not, try to find a chance to visit them. Fez, Morocco  Fez, about 240 miles northeast from Marrakesh,a wonderful scene is taking root slowly. It started with immigrants building castles, and continues as hotels and restaurants. The biggest news is that the Hotel Sahrai is completed with a bar and 50 rooms, many overlooking a pool.  Catskills, New York  The region that welcomed Jewish families in the 50s,hippies in the 60s, and soon, casino gamblers  . Many stylish B&Bs have opened. Among them are the Hotel Dylan in Woodstock, the Arnold House in Livingston Manor,with its bar and diminutive spa  . So now is the time to enjoy fly-fishing, hiking and other peaceful experiences. Rotterdam, Netherlands  The constantly unfolding city center in Rotterdam has become one amazing explosion of style, which surprised the tourists greatly. The latest attraction, and reason enough to visit, is the MVRDV-designed Markthal, an igloo  -like horseshoe that houses 20 shops, nine restaurants, and 228 apartments. It also happens to be Holland' s largest artwork. Chengdu, China  Famous for its 1,600 pandas, most of which still live in the wild, Chengdu has introduced a 72-hour no-visa policy that makes it easier for Americans to drop in on one of the city' s three major panda research facilities. But it' s worth sticking around longer to experience what' s doing in Chengdu, a city on the rise. One of the shiniest attractions is New Century Global Centre, the world' s largest building, complete with an artificial beach. 
 Answer: Join the local people in building castles.
[A]: What can a tourist do in Catskills?


[Q]: Article: We bet that on cold wintry days, many of you love to stay in your warm home and, every now and then, come out into the kitchen for a snack. Unfortunately, plenty of creepy-crawly critters like to do the same thing!     Winter is the time when bugs invade your house without an invitation. The season can be tough for such creatures. In winter the air is cold, the ground is hard and many trees have no leaves. So bugs do what they have to do to survive.     Monarch butterflies head south to warmer climates. Ants crowd in deep underground colonies and eat food they have been storing all year. Many insects go into a deep sleep called diapause. There're different kinds of diapause, but all are similar to hibernation, a time when bigger animals become inactive in the cold. Insects go into an inactive period, too, but it often isn't when the temperature drops.     They rely on more dependable signals in the environment. For example, many insects can tell how much sunlight there's each day. They use that to tell themselves when to shut down. Bugs are cold-blood-ed, meaning that their inside temperature is the same as the outside. They can't move much when it gets below 40 degrees Fahrenheit. So they search for any warm place.     They're looking for protection. These guys have been doing this for 300 million years, so they don't really know they're coming into your house. The home is a recent event in terms of their evolutionary behav-ior. They enter through tiny cracks or come in unnoticed on your clothes or shoes. Remember that they may be invading your homes for warmth and food, but they don't care about humans. 
 Answer: It is a deep sleep similar to hibernation.
[A]:
According to the text, what is diapause?


