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: In China ,with the development of society, more and more people are annoyed at the continually rising house prices. They want to know who is to blame for it. Local governments,developers and speculators share a vested interest in it. People who are really in need of homes are most likely to suffer heavy losses. Many local governments depend on selling land to keep its normal operation. The higher land prices,the more money. Therefore,developers back the local governments by buying land at high prices. In return,the governments make favorable policies to help the developers. For example,drive all the possible home buyers to this nasty market. They even encourage large numbers of speculators to catch more people. Rising house prices have already become the fence which divides the Chinese society. It has caused widespread dissatisfaction. The government will lose the support of the common people if leaving house prices out of control. Besides,rising house prices will stop us building the new countryside as the present policy actually forbid people to flow freely from cities to the countryside. Collecting taxes on houses can fundamentally solve this problem. On one hand,it will discourage the speculators. On the other hand,it will offer a stable tax resource apart from reducing the sales cost of the developers. secondly,stop the developers selling the houses before completion. If so,the developers will certainly try their best to sell all their houses once completed. And this will also lower speculators' expectation of price rising,which will decrease speculations.
Answer: speculators
Example Output: The only victims of rising house prices are _ .

Example Input: Article: Overlooking the swollen banks of the Missouri River at Omaha's riverfront landing, one scientist has an important explanation for the past three months of flooding .While many consider the flood to be man-made, a result of water released by the US. Army Corps of Engineers upriver, his theory aims to look deeper into the root of the problem. "The Missouri River is flooding," said Dr. James Hansen, Director of NASA's Goddard Institute for Space Studies, during a visit to Omaha on Tuesday."We've had floods that usually only happen once in every hundred years a couple of times on the Missouri River recently. That's one of the expected consequences of the increasing level of atmospheric carbon dioxide." Hansen, who is considered to be one of the world's leading experts on global warming , said the Missouri River is an example of how global warming is affecting the earth ."Unless you do statistics ,and you see that the frequency of these events is changing , it's not so easy to see that changes are occurring , because the climate system has large inertia ,"he said . Hansen explained, "The ocean is four kilometers deep, and the ice sheets are two or three kilometers thick , so they don't respond immediately as we begin to change the atmospheric composition .We've only experienced about half of the warming that will be caused by the gases already in the atmosphere .The full effect is going to be felt by our children and grandchildren .And if we continue to increase the amount of CO2, the effect will be even larger." Hansen drew a comparison, "If we spend more money than what we're taking in , we're leaving a debt for our children and grandchildren to deal with ."According to Hansen, the responsibility lies in effective policy making to fight against global warming .That includes a gradual reduction in carbon emissions .Hansen suggests that a rising price be placed on carbon emissions, which should be collected from the fossil fuel companies at the first sale . Without effective measures taken by the government, Hansen said the public could expect more of the recent extreme weather patterns,, including more severe droughts and floods in the decades ahead .
Answer: the army releasing water upriver
Example Output: Many people think the reason for the flooding of the Missouri River is _ .

Example Input: Article: Generational differences and the economy are shifting more responsibilities for children from their parents to grandparents, according to a new survey. More than one-third of grandparents aged 50 and older contribute financially to their grandchildren's upbringing, and 11 percent have a grandchild living with them, the poll by AARP, the group for 36 million older US citizens, showed. Forty percent of people who responded to the telephone survey, whose average age was 69, reported spending more than $500 on grandchildren over the past year beyond traditional gifts.Education costs accounted for 53 percent, daily expenses for 37 percent and medical costs for 23 percent.Sixteen percent provided daycare for grandchildren. "They are the safety net for American families, helping to pay for practical expenses and necessities," said Amy Goyer, AARP's multi-generational and family issues expert. "We see many providing daycare services, while growing numbers even have grandchildren living with them," she said, referring to the 16 percent who watch their grandchildren while the parents are at work or school. Generally nearly 90 percent of the 1,904 grandparents questioned said they play a very or somewhat important role in their grandchildren's lives, and about 70 percent live within 50 miles of the closest one. The poll conducted by Woelfel Research Inc.also showed that grandparents were increasingly keyed to the younger generation's life issues and preferred ways of communicating. More than one-third connect with their grandchildren via email or text messaging, while half said they routinely discuss topics ranging from values and spirituality to drug and alcohol use. Nearly 40 percent said they had discussed dating or sex with at least one grandchild.Some 60 percent said they spoke with their grandchildren at least once a week. Most of the grandparents said they had five or more grandchildren, while one-fourth said they had grandchildren of a different race or mixed race.
Answer: grandparents take more responsibilities for grandchildren
Example Output:
The passage mainly tells us _ .