You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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: Ireland has had a very difficult history. The problems started in the 16thcentury when English rulers fried to conquer Ireland. For hundreds of years, the Irish people fought against the English. Finally, in 1921. The British government was forced to give independence to the south of Ireland. The result is that today there are two "Irelands". Northern Ireland. In the north, is part of the united kingdom. The republic of Ireland. In the south. Is an independent country. In the 1840s the main crop, potatoes ,was affected by disease and about 750,000 people died of bunger. This, and a shortage of work , forced many people to leave Ireland and live in the USA, the UK, Australia and Canada. As a result of these problems, the population fell from 8.2 million in 1841 to 6.6 million in 1851. For many years, the majority of Irish people earned their living as farmers. Today, many people still work on the land but more and more people are moving to the cities to work in factories and offices. Life in the cities is very different from life in the countryside, where things move at a quieter and slower pace. The Irish are famous for being warm-hearted and friendly, Oscar Wilde, a famous Irish writer, once said that the Irish were "the greatest talkers since the Greeks", Since independence, Ireland has revived its own culture of music, language, literature and singing. Different are as have different styles of old Irish song which are sung without instruments. Other kinds of Irish music use many different instruments such as the violin, whistles, etc.
Answer: food shortages in the 1840s led to a decline in population
Solution:
we learn from the text that in Ireland _ .