Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Q: Lighter and cheaper than high-quality video cameras, today's best smartphones can shoot and edit high-definition (HD) videos. With lower-quality lenses and image sensors, smartphones probably won't replace professional video cameras anytime soon. Still, some creative filmmakers are extending the borders of smartphone moviemaking by shooting professional-quality films using only smartphones. Soon after Apple's iPhone 4 was released, two filmmakers decided to make a short film using only their iPhone 4s. Michael Koerbel and Anna Elizabeth James shot and edited the one-and-a-half-minute film Apple of My Eye in only 48 hours. Audiences were fascinated with the film, in which a man and his grandfather connect emotionally while admiring a model train set in a store window. The filmmakers followed up their success with Goldilocks, an extraordinary spy novel told over nine, three-minute films. Many filmmakers are convinced that smartphone films are here to stay. One sign is their inclusion in major film festivals. In February 2012, organizers of the Berkshire International Film Festival staged the 10 X 10 On North Festival. Entries included Oliver by Hooman Khalili, an award-winning film about a girl whose special powers enable her to brighten the lives of three lonely people. Another entry was Yearlapse'11, a 365-second film by Zsolt Haraszti that describes an actual journey he made from New York to London. During the festival, which ran from February 16 to 26, these and many other smartphone films were shown at the Beacon Cinema in Pittsfield, Massachusetts. Similar festivals in Canada and South Korea have given smartphone filmmakers opportunities to show off their creative work.

A: Which film is about secret agents?
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Q: Ponds are small bodies of fresh water that usually have no outlet; ponds are often are fed by underground springs. Like lakes, ponds are bordered by hills or low rises so the water is blocked from flowing directly downhill. Lakes are larger bodies of water. Lakes are usually fresh water, although the Great Salt Lake in Utah is just one exception. Water usually drains out of a lake through a river or a stream and all lakes lose water to evaporation. Lakes form in a variety of different ways: in depressions carved by glaciers, in calderas (Figure 1.1), and along tectonic faults, to name a few. Subglacial lakes are even found below a frozen ice cap. As a result of geologic history and the arrangement of land masses, most lakes are in the Northern Hemisphere. In fact, more than 60% of all the worlds lakes are in Canada most of these lakes were formed by the glaciers that covered most of Canada in the last Ice Age (Figure 1.2). Lakes are not permanent features of a landscape. Some come and go with the seasons, as water levels rise and fall. Over a longer time, lakes disappear when they fill with sediments, if the springs or streams that fill them diminish, (a) Crater Lake in Oregon is in a volcanic caldera. Lakes can also form in volcanic craters and impact craters. (b) The Great Lakes fill depressions eroded as glaciers scraped rock out from the landscape. (c) Lake Baikal, ice coated in winter in this image, formed as water filled up a tectonic faults. Lakes near Yellowknife were carved by glaciers during the last Ice Age. or if their outlets grow because of erosion. When the climate of an area changes, lakes can either expand or shrink (Figure 1.3). Lakes may disappear if precipitation significantly diminishes. Large lakes have tidal systems and currents, and can even affect weather patterns. The Great Lakes in the United States contain 22% of the worlds fresh surface water (Figure 1.1). The largest them, Lake Superior, has a tide that rises and falls several centimeters each day. The Great Lakes are large enough to alter the weather system in Northeastern United States by the lake effect, which is an increase in snow downwind of the relatively warm lakes. The Great Lakes are home to countless species of fish and wildlife. Many lakes are not natural, but are human-made. People dam a stream in a suitable spot and then let the water back up behind it, creating a lake. These lakes are called "reservoirs." Click image to the left or use the URL below. URL:

A: which of these is not full of fresh water?
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Q: Ra Patera is an extraterrestrial volcano located on Io.

A:
On what celestial body is Ra Patera located?
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