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.

Input: Consider Input: Article: Brownie and Spotty were neighbor dogs who met every day to play together. Like pairs of dogs you can find in any neighborhood, these two loved each other and played together so often that they had worn a path through the grass of the field between their houses. One evening, Brownie's family noticed that Brownie hadn't returned home. They went looking for him with no success. Brownie didn't show up the next day, and, although they made their efforts to find him, by the next week he was still missing, Curiously, Spotty showed up at Brownie's house alone, barking and jumping. Busy with their own lives, they paid no attention to the nervous little neighbor dog. Finally, one morning Spotty refused to take "no" for an answer. Ted, Brownie's owner, was continuously disturbed by the angry, determined little dog. Spotty followed Ted about, barking all the time, then rushing toward a nearby empty lot and back, as if to say, "Follow me! It's urgent!" Eventually, Ted followed Spotty across the empty lot as Spotty stopped to race back and barked encouragingly. The little dog led the man to a deserted spot a half mile from the house. There Ted found his beloved Brownie alive, one of his legs crushed in a steel trap . Frightened, Ted now wished he had taken Spotty's earlier appeals seriously. Then Ted noticed something. Spotty had done something else besides leading Brownie's human owner to his trapped friend. In a circle around the injured dog, Ted found some food remains of every meal. Brownie had been fed that week! Spotty had been visiting Brownie regularly, in the hope of keeping his friend alive. Spotty had actually stayed with Brownie to protect him from hunger and other dangers, and keep his spirits up. Brownie's leg was carefully treated and he soon got well again. For many years thereafter the two families watched the faithful friends chasing each other down that well-worn path between their houses.
Answer: he was not free at the moment

Output: At the very beginning, Ted paid little attention to Spotty because _ .

Input: Consider Input: Article: 14 days from just PS2,090 pp Fully inclusive from the UK Price covers, international airfares, departure taxes, fuel charge, local transportation all meals, entrance fees, guides, daily tours and visas for UK citizens. * Days 1-3: UK-Shanghai Fly to the great city of shanghai and in the evening _ traditional shanghai food. Visit the beautiful Yu Garden, Old Town. Shanghai Museum, cross the Grest Nanpu Bridge and tour the Pudong area. Also explore Xintiandi with its 1920's style Shikomen buildings and end your stay in Shanghai with an amazing Huangpu River evening tour. * Days 4-7: Shanghai-Yangtze River Tour Fly to Yichang and change(approx: one hour)to board your Yangtze River ship for the next four nights. Enjoy a tour of the three Gorges Dam before sailing on the grand Yangtze River, passing through the impressive Three Gorges. We take a side trip to the Lesser Three Gorges or travel up the Shennong Stream in a peapod boat and enjoy various shore trips along the way. * Day 8: Chongqing--Chengdu Get off in Chongqing and drive to Chengdu for an overnight stay. * Day 9-10: Chengdu-Xi'an Visit the famous Panda Reserve to see the lovely animals. We then fly to the historic city of Xi'an for two nights, stay and enjoy traditional Shuijiao. Next day, explore one of the most important discoveries of the 20th century--the Terracotta Warriors ,followed by the ancient City Wall and a performance of Tang Dynasty dancing. * Day11-13: Xi'an-Beijing Visit little wild Goose Pagoda and see the ancient objects at the well-known Shanxi Provincial Museum before walking through the lively Muslim Quarter to see the Great Mosque. Later fly to Beijing for three nights' stay and try Peking Duck. During our stay in Beijing, we stroll through Tian'anmen Square to the Forbidden city, the largest and best preserved collection of ancient buildings in China, and visit the summer palace. Next day we take a walk on the Great wall, tour the unique Temple of Heaven and enjoy an attractive Chinese Acrobatic Show. * Day 14: Beijing-UK Fly back to the UK, arriving home later the same day filled with happy memories.
Answer: the Terracotta Warriors and the Great Mosque

Output: The first and last scenic spots he visited in Xi'an are _ .

Input: Consider Input: Article: No one really knows how and why people change as they get older. Also, no theory sufficiently explains all the changes of the aging process. Aging is a complex and varied process that varies in how it affects different people and organs. In fact, even in one person , different organ systems "age " at a different rate. At a certain point in our lives our body systems will begin to weaken . It may become more difficult for us to see and hear. The slow change of aging causes our bodies to lose some of their ability to _ from disease and injury. In order to live longer , we have always tried to slow or stop this change that leads us toward the end of our lives. Many factors decide our health . A good diet plays an important role. The amount and the type of exercise we get are another two factors. Our living condition is yet another. But scientists studying the aging problem want to know: Why do people grow old? They hope that by studying the aging medical science they may be able to make the length of life longer. There is nothing to be afraid of as the old age comes. Many consider the later part of life to be the best time for living. Physical activity may become less, but often we get better understanding of the world and ourselves. What we consider the old age now may only be middle-aged some day soon. Who knows ,with so many advances in medical science happening so quickly, life length may one day be measured in centuries ,rather than in years!
Answer: invent new medicine to slow down the process of aging
Output: In order to make people live longer, scientists _ according to the text.