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: From New Delhi to Beijing,commuters spend a lot of time stuck in traffic.In the United States,Los Angeles(L.A.)and San Francisco tie for second place for having the worst traffic problems.Washington,D.C.is in first place with the worst traffic,according to the Texas A&M Transportation Institute. In L.A..drivers spend sixty-one hours every year stuck in traffic.These drivers know all too well how bad the traffic can be.Professor Cyrus Shahabi also knows about traffic jams.He said,"It's a prison of cars.There are too many cars,you can't move around a lot.I live more than 65 kilometers from my office at the University of Southern California.in L.A..I'm always late even with the help of a navigation system.I thought it would be appropriate to do something to solve it." Therefore,he and PhD student Ugur Demiryurek decided to develop an app for that.The ClearPath app claims to do what other navigation systems cannot.Professor Shahabi says his program uses historical data to predict traffic conditions even before the driver leaves the house. ClearPath uses two and a half years worth of traffic data from 9,000 sensors on the roads of L.A..It also collects information on accidents. Professor Shahabi says his system does more than just respond to current traffic conditions.With ClearPath,he says,a driver can enter what time he wants to leave on a specific time and date,and ClearPath will give the fastest route.It looks at the entire road network,including surface streets as well as highways,before the driver hits the road. Ugur Demiryurek says they will launch the free ClearPath app for roads in L.A.in two months.In a year,he and Professor Shahabi hope to have ClearPath available nationwide and overseas once they can collect traffic data from other cities. "I thought always that L.A.had the worst traffic,but now I know that Shanghai,Beijing,Seoul,Tokyo,believe it or not,Singapore,Hong Kong definitely are examples that can immediately use this."
Answer: collect the current news
Output:
The ClearPath app can mainly be used to _ .