*Question*
Article: People who have the habit of texting while walking tend to develop a robot-like posture, lose their balance, and involve themselves in traffic accidents, according to a research from the University of Queensland. Researchers said that text-walkers are in danger of walking into traffic and train tracks among others. They suggest pedestrians stop aside, type a text and then continue walking. For the study, the researchers tracked body movements of 26 young men and women while walking in a straight line over a distance of about 8.5 m ---once without a mobile phone, once while reading a text message and once while typing a message. They found that participants' body movements were greatly changed when they used their phone. The difference in their posture was more _ while sending a text than while reading a message. They further said that when those people began texting while walking, they slowed down their pace, went off course and moved their necks less than when reading a message. "We found that they 'locking' their arms, trunk and head together walked with a posture that was robot-like, all in aid of keeping their phone in their field of vision. So there is less movement between each of their body parts." Researcher Siobhan Schabrun said, Daily Mail UK reports. "In recent years, there have been many reports of people involved in traffic accidents because they were texting while walking. The number of pedestrian accidents is rising and texting has been blamed," Schabrun said. Despite such repeated accidents, only few studies have analyzed the impact of texting on body language. If more studies concentrate on walking styles adopted while texting, their findings can be used to lower whole accidents. While a few U.S. states have introduced laws on texting while driving, Fort Lee, a New Jersey town, went further ahead and recently fined some walkers an $85 for catching them texting. It is hoped that other American states and countries will follow. Question: How did the researchers carry out their research? Yes or no, is the answer "They followed some pedestrians in the street."?
**Answer**
No

*Question*
Article: Two men were sitting together on a ship. They were on a long travel. One of them was a professor. The other was a farmer. They sat without talking for a while, and then the farmer said, "Let's do something to pass the time." "What do you want to do?" the professor asked. "We can ask each other riddles." The farmer said, "You start." "Let's make the rules first," the professor said. "That's not fair. You are a professor with much knowledge. You know more things than I do. I am just a farmer." "That's true." The professor said. "What do you want we should do?" "If you don't know the answer to a riddle, you pay me $100. And if I don't know the answer, I'll pay you $50." The farmer said. The professor thought about this, then he said, "OK. That's fair. Who will go first?" "I will," The farmer said. "Here is my riddle. What has three legs when it walks, but only two legs when it flies?" The professor man repeated the riddle, "What has three legs when it walks, but only two legs when it flies? Mm, that's a good one. I'm afraid I don't know the answer." He gave the farmer $100, then said, "Tell me the answer. What has three legs when it walks, but only two legs when it flies?" "I don't know." The farmer said and gave him $50. Question: What does the word "riddle" mean in this story? Yes or no, is the answer "a difficult question to find the answer to."?
**Answer**
No

*Question*
Article: There's nothing like a good night's sleep -- but what does that really mean? It turns out that the answer depends not only on your age, but also on your lifestyle. Some people are productive and happy with fewer hours of sleep, while others need more. Still, experts can determine guidelines that work for most people. The National Sleep Foundation researched the topic and gave new recommendations this week. The foundation acknowledges that sleep needs will vary -- lifestyle and stress should be taken into consideration -- but their recommendations offer a general guideline. For example, teenagers (14 --17 years old) need 8--10 hours' sleep every day. To create the recommendations, some sleep and medical experts reviewed 312 articles from journals published during the last decade. This is the first time that any professional organization has developed age-specific recommended sleep durations based on a systematic review of the world scientific literature. A lack of sleep can be linked to weight gain, because that causes an increase in appetite, according to the foundation. It can also have serious consequences on the brain. People who do not get enough sleep are at increased risk for depression, and can endanger others. Those that become sleepy while driving, for example, risk both their lives and the lives of those around them. Researchers also have found in the past that too much sleep can have negative effects. Low socioeconomic status and depression reportedly are significantly associated with longer sleep. However, experts nowadays find that research on oversleeping is still unconvincing and needs more attention. Currently, there is no strong evidence that sleeping too much has health consequences. There is, however, laboratory evidence that short sleep durations of four to five hours have negative consequences. We need similar laboratory studies to determine whether long sleep durations result in physiological changes that could lead to disease before we make any recommendations against sleep extension. Question: The research shows that people without enough sleep will _ . Yes or no, is the answer "eat more food"?
**Answer**
No

*Question*
Article: Bursting into the classroom from recess , 15 children take their seats and face the woman they know as Ms. Yang. "What day is it today?"she asks, in Mandarin Chinese. "Confucius' birthday!"the fifth graders shout in Mandarin. "Why do we celebrate Confucius' birthday?" "Because he's the greatest teacher in the history of China!"exclaims a brown-haired girl. She too is speaking Mandarin. English is rarely heard in Lisa Yang's class at the Chinese American International School(CAIS), despite the fact that few students are native speakers of Mandarin. The United States is actively trying to increase the group of students in"critical languages"such as Mandarin. The students at CAIS are way ahead in such a trend. Mandarin explosion in America Founded 25 years ago, this small private school in San Francisco, USA, does what few other American schools do: It produces fully fluent speakers of Mandarin Chinese, by far the most commonly spoken language in the world. Mandarin Chinese is suddenly hot in American schools. As China becomes the world's leading economy sometimes this century, schools in the U.S. are _ to add Mandarin to their roster of foreign languages or expand Chinese programs already in place. "It really is almost unprecedented . People are looking at China as a force to be reckoned with...And to ensure that the U.S. has the ability to conduct trade, and to work with the Chinese, certainly having an understanding of Chinese language and culture is an advantage,"said Marty Abbott of the American Council on the Teaching of Foreign Languages(ACTFL) . Cultural differences in teaching styles To develop Chinese-language programs has not been smooth. A shortage of trained teachers has made it difficult for some schools to join the race. When schools do get teachers, they often hire them straight from China, and the teachers usually suffer culture shock when they come to the U.S. Robert Liu remembers his first two years in an American classroom. It was not an easy adjustment. "In China, students respect their... Question: What kind of problem is the most difficult to adjust in teaching Chinese in America? Yes or no, is the answer "To be fit for the cultural differences in teaching styles."?
**Answer**
No