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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.

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
Solution: Researchers did experiments on kids in order to find out _ .
Why? 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: Article: Commuters who drive to work will face a parking charge of up to PS350 a year.Ministers are backing a workplace parking charge which will come into force in Nottingham in 2013 and is likely to be adopted across the country.The scheme will see firms with more than ten parking places for staff charged PS350 a year for each space in two years. Employers would be free to pass on the charge to their staff--meaning it would effectively be a tax on driving to work.The scheme aims to reduce traffic by preventing unnecessary car journeys and raise funds to improve public transport,but critics say it is just an excuse for councils to fill their coffers . Some ten million Britons drive to work each day,and the British Chambers of Commerce says the new charge could total PS3.4 billion a year if rolled out nationwide. Already some firms in Nottingham have threatened to leave the city,where 40,000 commuters use their cars to get to work.A spokesman said the scheme was nothing more than a tax on jobs."It is very unfair to discriminate against those employers who have parking spaces,which get vehicles off the streets," he said."And these charges apply around the clock,which is especially unfair on shift workers who rely on their cars because public transport is not available.This is more about increasing the government's income than reducing traffic." However,Transport Minister Sadiq Khan gave the plan an official approval during a visit to Nottingham. The council says the tax will raise as much as PS100 million over ten years--one fifth of the cost of a new transport system for the city. Another transport spokesman Theresa Villiers said the tax would have a devastating impact on businesses struggling to cope with the economic decline. But Richard Hebditch of the Campaign for Better Transport said the tax would raise money to invest in better transport."We put forward the idea of workplace parking taxes as a fairer way to raise money to invest in the future local transport services.We are pleased that the people of Nottingham will be the first to benefit."
Answer: will relieve traffic pressure and improve public transport
Solution:
Supporters argue that the scheme _ .