Given the task definition, example input & output, solve the new input case.
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: Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
Output: Researchers did experiments on kids in order to find out _ .
It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

New input case for you: Article: *Putting Movies on Mobile Movies in the theater get their recognition at awards ceremonies such as the Oscars.But how about movies for phones? They are getting their turn at MoFilm --the first mobile film festival. The first MoFilm competition, received 250 entries from more than 100 countries.Entries were restricted to films that were five minutes or less in length-ideal for viewing and sharing on mobile phones.An independent jury then selected a shortlist of five film-makers.The winner was chosen from the shortlist by an audience voting using their phones. *New Platforms The awards highlight the increasing impact that mobile phones are making in the entertainment industry.Many grassroots filmmakers start out with short films.They are _ by the lack of opportunities to screen their work.Therefore, mobile phones are increasingly being seen as a new platform for these short works. It is a good place for anyone who wants to express themselves and find a way to have that expression seen by a wide audience.Just think about how many people have mobile phones in the world! *New Technology Advances MoFilm is pioneering content for mobile and online services that is a world away from Hollywood.The majority of films made for mobiles are now short in length, taking into account the screen size.However this could be overcome as technology advances. In the near future, longer films will likely be seen on the mobile phone.And there are mobile companies creating phones where users can watch movies at higher quality. Wherever you see movies, one thing is certain: the qualify of work, the simple ability at story telling, and the thing that inspires someone to tell a story can really come from anywhere.
Answer: online services
Output:
Nowadays the majority of films made for mobiles are short in length because of _ .