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

Example Input: Young people frequently say that they want to exercise, but they just can't find the time. The solution just might be in-office interval training. Recent studies show that very short but intense exercise rapidly builds and maintains fitness and health, even when the workout is only a few minutes long. Work the stairs You can complete an excellent, effective -- and very brief -- workout in an office stairwell, says Martin Gibala, a professor of kinesiology at McMaster University in Canada and an expert on interval training. For a study that he and his colleagues presented earlier this year, they asked 12 out-of-shape women in their 20s to warm up for two minutes by slowly walking up and down stairs in a campus office building. They completed three of these abbreviated stair workouts per week for six weeks. By the end, their aerobic fitness had improved substantially, the researchers reported, by about as much as if they had been running or cycling each week for hours. Fidget your way to fitness. Parents and teachers may once have urged you to sit still, but wiggling, tapping your toes, standing briefly, and otherwise fidgeting as much as possible at your desk is in fact good for your body. In one recent study, college students showed healthier blood flow in their lower legs if they fidgeted than if they did not. Even better, a 2008 study found that among office workers, those who frequently fidgeted burned as many as 300 calories more each day than those who resolutely stayed still.
Example Output: How many studies are shown in the passage?

Example Input: When you make a mistake, big or small, cherish it like it's the most precious thing in the world, because in some ways, it is. Most of us feel bad when we make mistakes, beat ourselves up about it, feel like failures, get mad at ourselves. And that's only natural. Most of us have been taught from a young age that mistakes are bad, and we should try to avoid mistakes. We've been scolded when we make mistakes--at home, school and work. Maybe not always, but probably enough times to make feeling bad about mistakes an unconscious reaction. Yet without mistakes, we could not learn or grow. If you think about it that way, mistakes should be cherished and celebrated for being one of the most amazing things in the world. They make learning possible; they make growth and improvement possible. By trial and error--trying things, making mistakes, and learning from those mistakes--we have figured out how to make electric light, to paint the ceiling of the Sistine Chapel, to fly. Mistakes make walking possible for the smallest _ , make speech possible, and make works of genius possible. Think about how we learn:We don't just consume information about something and instantly know it or know how to do it. You don't just read about painting,or writing,or computer programming,or baking, or playing the piano, and know how to do them right away. Instead, you get information about something, from reading or from another person or from observing usually...then you construct a model in your mind...then you test it out by trying it in the real world...then you make mistakes...then you revise the model based on the results of your real world experimentation...and repeat, making mistakes, learning from those mistakes, until you've pretty much learned how to do something. That's how we learn as babies and toddlers, and how we learn as adults. Mistakes are how we learn to do something new--because if you succeed at something, it's probably something you already knew how to do. You haven't really grown much from that success--at most it's the last step on your journey, not the whole journey. Most of the journey is made up of mistakes, if it's a good journey. So if you value learning,if you value growing and improving,then you should value mistakes. They are amazing things that make a world of brilliance possible.
Example Output: What is the best title of this passage?

Example Input: London has a new magazine.However,it is not printed on paper any more.Everyone who has a television can receive it because it is already on TV! In order to read this magazine,you need to have a decoder.Each page of it is numbered,so you have to dial a number to choose which subject you want to read about.You have a wide choice of topics to choose from-everything from cooking to the latest news. If you want to read some news,the first thing you have to do is to check at the index page which has an easy-to-remember page number,1 00 for example.From page 100,you can then choose from the news articles on page 101 to 109.From here,you will have to key in the numbers again.Then,the news will appear written across your screen.If you want to go out in the afternoon,you can press 181,and a brightly color1ed weather map will appear on the screen.But if you want to buy some cheap things,you can press 162 for a list of the week's best bargains.And whether you should drive or just take the train,you can simply press 189 for the traffic report.This new magazine on TV is very simple to use.But probably,the best thing about the service is that is being updated all the time.Journalists type new materials directly onto screen and the page of the magazine is replaced in minutes. London already has three services.One,transmitted by ITV ,is called ORACLE while the other two,on BBC,are called CEEFAX because they let you see facts.Although CEEFAX and ORACLE have been operating for some time, they have not been well publicized.BBC engineers do not think that their idea will ever replace books and newspapers because this new invention can't be taken with you wherever you go.But many people would agree that this is a breakthrough as great as the invention of printing, which could change not only our reading habits but also our lifestyles.
Example Output:
Which is the best title of the passage?