In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Example Input: Article: The famous car Rolls-Royce has been largely hand-made and always one of the most expensive cars on the market. In fact, Rolls-Royce is made up of two men's names, Charles S. Rolls and Henry Royce. They came from very different backgrounds, received very different educations and when they met; their careers were going in very different directions. In 1903, Royce bought a second-hand France Decauville car. He found the car unreliable, difficult to start and overheated. Royce decided he could do better himself and set about building two-cylinder car of his own design. The first of these, built almost completely by Royce himself, was a success in almost every way: it started easily, ran smoothly and was very reliable. It never failed to impress everyone who saw it rode in the car, including Rolls. While he was a university student at Cambridge, Rolls acquired a French Peugeot. It was the first automobile seen at Cambridge and by the time Rolls finished his studies, he was probably the most skilled driver in Britain. In 1902, Rolls went into the business of selling cars and became a leading automobile . He was looking for a British car to market when he was told that Henry Royce had designed and built a two-cylinder automobile. In 1904, Royce and Rolls joined together to build and sell motor car. They combined their talents--Royce the engineer and Rolls the salesman and businessman. And, just two years later, the partnership produced the Rolls-Royce Silver Ghost, a milestone car acclaimed by many by the time as the " best in the world". Over the years the automaker built a legendary reputation.
Answer: procedure
Example Output: The Rolls-Royce is expensive for its _ .

Example Input: Article: Professor Smith recently persuaded 35 people, 23 of them women, to keep a diary of all their absent-minded actions for a fortnight. When he came to analyse their embarrassing lapses ( ) in a scientific report, he was surprised to find that nearly all of them fell into a few groupings, nor did the lapses appear to be entirely random . One of the women, for instance, on leaving her house for work one morning threw her dog her earrings and tried to fix a dog biscuit on her ear. "the explanation for this is that the brain is like a computer," explains the professor. "People programme themselves to do certain activities regularly. It was the woman's custom every morning to throw her dog two biscuits and then put on her earrings. But somehow the action got reversed in the programme," About one in twenty of the incidents the volunteers reported were these "programme assembly failures," Altogether the volunteers logged 433 unintentional actions that they found themselves doing -- an average of twelve each, There appear to be peak periods in the day when we are at our zaniest . These are two hours some time between eight a.m. and noon, between four and six p.m. with a smaller peak between eight and ten p.m. "Among men the peak seems to be when a changeover in brain 'programmes' occurs, for instance between going to and from work." Women on average reported slightly more lapses- 12.5 compared with 10.9 for men probably because they were more reliable reporters. A startling finding of the research is that the absent-minded activity is a hazar of doing things in which we are skilled. Normally, you would expect that skill reduces the number of errors we make. But trying to avoid silly lapses by concentrating more could make things a lot worse or even dangerous.
Answer: to keep a record of what they did unintentionally
Example Output: In his study Professor Smith asked the subjects_.

Example Input: Article: . As the world's largest terrestrial carnivore ,the polar bear is the king of the great white north. Adult males can measure more than 9 feet in length and weigh between 770 and 1,430 pounds. The bear's body and neck are elongated, and the head is narrow and long with small, rounded ears. Polar bear populations can be found in northern Canada, Greenland, Norway and Russia, and there have been reports that polar bear tracks have been found as far north as the North Pole. The 5,000,000-square-mile range of the polar bear circles the Arctic and contains stretches of open water where seals are easily caught. Polar bears live on the annual Arctic sea ice that provides a platform from which they can hunt. They hunt seals on the sea ice by breaking into seal dens in the sea ice. The dens aren't visible from above,but seeing is less important than smelling to a polar bear -- with their keen sense of smell,polar bears can sense the breathing holes of seals in their dens beneath the snow and ice. As the southern edge of the Arctic ice cap melts in summer, polar bears are stranded on land and spend their summers fasting ,living off body fat stored from hunting in spring and winter. It might come as a surprise that this species faces an uncertain future. Climate change is causing the disappearance of sea ice from which polar bears hunt seals. Sea ice in the Arctic is melting earlier and forming later each year. With about 22,000 polar bears living in the wild,the species is not endangered at the moment, but its future is far from certain. People have reached an agreement that controls the hunting of polar bears and directs each nation to protect their habitats, but it does not protect the bears against the biggest man-made threat to their survival : global warming. If current warming trends continue, scientists believe that polar bears may disappear within 100 years.
Answer: necks
Example Output:
Polar bears search for seals mainly through their _ .