TASK DEFINITION: In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
PROBLEM: Article: A board game is a game played on a pre-marked surface or "board" according to a set of rules. Board games have been played in most cultures and societies throughout history. Do you think of yourself as a bit of an expert at board games like chess or Go? Maybe you're not quite as good as you think. New research from the University of Manchester and Oxford suggests complex games like these are impossible to learn fully. They may even be too complex for the human mind to understand. Researchers studied two-player games, to try and understand the strategies which people use to make decisions during the game. Some games with two players are simple, with only a small number of possible moves. Players can quickly work out the best strategy but that means the game soon becomes boring. It gets more interesting when there are many possible moves. That's why people are so fascinated by complex board games like chess or Go, or some card games. But what the researchers found was that with difficult games, players find it hard to work out the best strategy and their actions become less reasonable. This research is part of the field called game theory: the study of human strategic decision-making. Much thinking on how people play complex games is based on something called "the balance point", which is when players have a perfect knowledge of what they are going to do and of what their rivals are going to do. When you add more than two players then of course the game becomes even harder to understand. Trading on the stock market is an example of a complex multi-player game.
Answer: Mahjong

SOLUTION: Which of the following games belongs to board games?

PROBLEM: Article: WASHINGTON -- President Obama brought together the leaders of Japan and South Korea to discuss cooperation on containing North Korea and its nuclear weapons programs. Japan and North Korea have had tense relations over unresolved issues, some of them dating back 100 years. The three leaders emphasized the importance of cooperation in dealing with North Korea. The meeting took place Tuesday in the Hague, after a twoday nuclear security summit. President Obama praised South Korean President Park Geunhye and Japanese Prime Minister Shinzo Abe for overcoming their differences to discuss a serious threat to regional peace. He emphasized the importance of cooperation on the North Korean nuclear issue. Obama said the three discussed steps to deepen diplomatic and military cooperation, including joint military exercises and missile defense against Pyongyang. He said further discussions would take place next month, during his visits to Seoul and Tokyo. The South Korean president stressed the importance of a united response to North Korea, but also called on the North to choose a peaceful path. "I sincerely hope that this meeting will offer a chance for us to reconfirm our trilateral coordination and strengthen the cooperation on the nuclear front," said Park. Japanese Prime Minister Shinzo Abe agreed. "Particularly it is extremely important that we were able to confirm close cooperation among Japan, the United States and the Republic of Korea on the issue of North Korea, the three countries who would like to cooperate so that North Korea will be able to take a positive position with regard to nuclear and missile issue," said Abe. Japan and South Korea have several unresolved issues, including Japan's refusal to apologize again for crimes committed 70 years ago. Former U.S. diplomat Richard Armitage told an audience this week that painful historic injustices take a long time to heal, and that it is in Japan's interest to continue apologizing for as long as necessary. "There is a historical record of enormous generosity, achievement and respect for human rights and human freedom," said Armitage.
Answer: Website news section.

SOLUTION: Where can we find this article?

PROBLEM: Article: While reading a book in English, every few lines of text, you run across a word or two that you don't know. You look up every new word in the dictionary. Bad move. All that does slow you down. Even electric or CD -ROM dictionaries can get in the way of your reading progress. A dictionary is like a road map. It can help you if you get lost and point you in the right direction. But if you stop to look at the "map" each time you take a step, you'll get nowhere fast. On your English learning "journey", a dictionary can be a helpful "travel companion "--if it is not overused. To help you start thinking in English, use an English-to-English dictionary. Otherwise, you will always depend on your native language and end up translating in your head. A good dictionary can help you do more than just find the meaning of a word. It can help you verify spelling, check word forms and grammar usage, find example sentence and learn pronunciation. Some dictionaries even provide exercises to teach you how to use their resources. Take time to get to know your dictionary. Learn the pronunciation symbols. Understand what the abbreviations mean. Try to master the important grammar rules. Look for charts, diagrams and lists might be useful in the future. You will discover how helpful it can be to make friends with your dictionary. And as they say, "A friend in need is a friend indeed."
Answer: Because it can help us to start thinking in English and in Chinese.

SOLUTION:
Why do we need a good English-to-English dictionary?