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: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter.
Answer: 7.5 kg; 45 kg
Example Output: Something that weighs 15kg on Earth weighs about _ on Mars and _ on Jupiter.

Example Input: Article: I found the imagination of becoming a grandmother somewhat discouraging. I was younger than I thought a grandmother should be when I got the news that I was going to become one myself. I admit, it was not a role that I was emotionally ready to accept. I had been a young mother, and had certainly hoped my daughter would not face _ . I remarried when she was a teenager, and then had two more children. On getting the news that she was expecting , I remember thinking "What do I know about being a grandmother? --I haven't even finished raising my own kids yet!" I don't like to be unprepared, so I read a few books about grandparenting. That gave me a little help, but I was still uncertain. I thought about other grandmothers I knew, and got a few ideas I liked and a few more that I didn't. But I couldn't quite figure out what kind of grandmother I wanted to be. Then I thought about my own grandmother, Granny, as she's known by most people, and I knew I had the answer. I didn't realize it until that moment, but my own grandmother was the example for the kind of grandmother I wanted to be. I am fortunate that I got to spend a lot of time with my grandparents when I was a little kid. Here is what I learned from my Granny: Grandmothers always have a cookie jar. For my whole life, Granny always had a cookie jar full of cookies. When I was a little tiny girl, just at eye level with the counter, Granny would get the cookie jar down for me. When I was a little older I learned how to pull the chair over so I could reach. As I got taller, if I really stretched, I could reach the cookie jar with my finger tips and move it close enough to get it down off the counter to find out what kind of treat was inside. Always the first thing I did when I went to Granny's house was check the cookie jar, and there were always cookies in it. Many years later, I'll drive my own children to Granny's house and the first thing to do is get us all a cookie. So grandmothers must have a cookie jar, and on my granddaughter' s first Christmas,my daughter bought me my own cookie jar. She said when they came to see me,her daughter would find the treat the way she did and I did.
Answer: she was not emotionally ready to be one
Example Output: The writer thought it was a little discouraging to be a grandmother because _ .

Example Input: Article: Everyone knows that the Frenchmen are romantic, the Italians are fashionable and the Germans are serious. Are these just stereotypes or is there really such a thing as national character? And if there is, can it affect how a nation succeed or fail? At least one group of people is certain that it can. A recent survey of the top 500 entrepreneurs in the UK found that 70% felt that their efforts were not appreciated by the British public. Britain is hostile to success, they said. It has a culture of jealousy. As a result, the survey said, entrepreneurs were "unloved, unwanted and misunderstood." Jealousy is sometimes known as the "green - eyed monster" and the UK is its home. Scientists at Warwich University in the UK recently tested this idea. They gathered a group of people together and gave each an imaginary amount of money. Some were given a little, others a great deal. Those given a little were given the chance to destroy the large amount of money given to others - but at the cost of losing their own. Two thirds of the people tested agreed to do this. This seems to prove that the entrepreneurs were right to complain. But there is also conflicting evidence. The Organization for Economic Cooperation and Development recently reported that the UK is now the world's fourth largest economy. That is not bad for people who are supposed to hate success. People in the UK also work longer hours than anyone else in Europe. So the British people are not lazy, either. "It is not really success that the British dislike," says Carey Cooper, a professor of management at the University of Manchester Institute of Science and Technology. "It's people using their success in a way that seems proud or unfair or which separates them from their roots." Perhaps it is the entrepreneurs who are the problem. They set out to do things in their way. They work long hours. By their own efforts they become millionaires. But instead of being happy they complain that nobody loves them. It hardly seems worth following their example. If they were more friendly, people would like them more. And more people want to be like them.
Answer: the British people hate success
Example Output:
Most entrepreneurs surveyed believe that _ .