*Question*
Article: Flight Distance Any observant people have noticed that a wild animal will allow a man or other potential enemy to approach only up to a given distance before it escapes. "Flight distance" is the terms used for this interspecies spacing. As a general rule, there is a positive relationship between the size of an animal and its flight distance --- the larger the animal, the greater the distance it must keep between itself and the enemy. An antelope will escape when the enemy is as much as five hundred yards away. The wall lizard's flight distance, on the other hand, is about six feet. Flight is the basic means of survival for mobile creatures. Critical Distance Critical distance apparently is present wherever and whenever there is a flight reaction. "Critical distance" includes the narrow zone separating flight distance from attack distance. A lion in a zoo will flee from an approaching man until it meets a barrier that it cannot overcome. If the man continues the approach, he soon penetrates(,)the lion's critical distance, at which point the cornered lion turns back and begins slowly stalk the man. Social Distance Social animals need to stay in touch with each other. Loss of contact with the group can be fatal for a variety of reasons including exposure to enemies. Social distance is not simply the distance at which an animal will lose contact with his group --- that is, the distance at which it can no longer see, hear, or smell the group --- it is rather a psychological distance, one at which the animal apparently begins to feel anxious when it goes beyond its limits. We can think of it as a hidden band that contains the group. Social distance varies from species to species. It is quite short --- apparently only a few yards --- among some animals, and quite long among others. Social distance is not always rigidly fixed but is determined in part by the situation. When the young of apes and humans are mobile but not yet under control of the mother's voice, social distance may be the length of her reach. This is... Question: If a lion's critical distance is penetrated, it will _ Yes or no, is the answer "begin to attack"?
**Answer**
No

*Question*
Article: I lay on the bed trying to put on my favorite pair of pants, pulling and dragging, but the zipper wouldn't close. Angrily I threw them to the back of the closet. I found a long large skirt, tied it around my middle, and then joined my husband downstairs. I caught sight of myself in the halfway mirror--I didn't like the person I saw. The weight kept climbing higher each year. The problem was that I hated the word "diet". To me it meant my keeping off every good thing I loved. Later that summer, I found myself out of breath when I climbed two flights of stairs and my heart started beating heavily. I saw my doctor and she told me that I needed to bring down my blood pressure. "Easy for her to say," I thought when I drove back home. Up ahead I saw a McDonald's. I pulled in. The doctor's warning couldn't resist the pull of McDonald's food. The next morning I stepped on the scale and weighed more than I had ever had in my life. Just at the very moment, my thoughts were finally clear. To check the weight I needed to control my choices. Several days later, I went to my favorite restaurant for lunch--I only chose Chinese chicken salad. I felt great when I left the restaurant carrying a take-home box filled with half of that huge salad. But most of all, I discovered I had control over my choices. The weight came off slowly, but after a while it made no progress. Eating a light meal a couple of nights a week would help, but that meant I would prepare two separate dinners, for I would have to continue to make my husband his favorite meals, who supported my weight loss goal. Dusting off the old two--wheel vehicle in the garage, I added exercise by pedaling for 30 minutes after dinner. A year later I lost 25 pounds and my blood pressure was normal. I tried on my favorite pants again. They fit perfectly. Question: On the way back from the doctor's, the author _ . Yes or no, is the answer "had a meal at McDonald"?
**Answer**
No

*Question*
Article: A few months ago, while driving home from work, I stopped at a gas station to gas up my car before heading home. When I went in to pre-pay for my gas, I saw a man with his son ahead of me in the line. They were a little dirty from working & painting at a local job site and the man asked the clerk to help them patiently. The clerk behind the counter seemed annoyed and not interested in talking to them. From their conversation, I knew that the man had lost his wallet, was almost out of gas and still had 1.5 hours drive to get himself and his son home. He couldn't write the clerk a check. Because he knew the money in his account wasn't available yet. The clerk asked them to move aside and let me up to the register. I gave the clerk two 20 dollar bills and told him to put $20 on my pump and to pre-pay $20 on their pump also. When I went back out to fill my gas tank, the teenage son came towards me to express his appreciation. His father was too excited, so he stayed inside the store until I was gone. They asked if I would accept a check from them for the money, but I refused. I told the teenager to "pay it forward" and help _ Question: Why didn't the man thank the author? Yes or no, is the answer "He found it hard to control his strong feelings."?
**Answer**
Yes

*Question*
Article: About five years ago, an American electrical engineer named Scott Brusaw and his wife Julie came up with the idea of putting solar panels on the ground rather than the roof. Then they began to develop the Solar Roadway. The Solar Roadway is an intelligent road that provides clean renewable energy using power from the sun while providing safer driving conditions, along with power and data delivery. They predict that the Solar Roadway will pay for itself through the generation of electricity along with other forms of income and that the same money that is being used to build and resurface current roads can be used to build the Solar Roadways. Each Solar Road Panel measures roughly 4 meters by 4 meters and contains a microprocessor that monitors and controls the panel, while communicating with neighboring panels and the vehicles traveling overhead. The inventors suggest that this provides a communications device every 4 meters on every road which could be used for example to warn drivers of cars which are moving across a centre line and various other speed control problems. The top of the Solar Road panels is made of super-strong glass that would offer vehicles the tractions _ need. According to the inventors, the Solar Roadway creates and carries clean renewable electricity and therefore electric vehicles can be recharged at any conveniently located rest stop, or at any business that has paved Solar Road Panels in their parking lots. The inventors say their Solar Roadway has many functions and advantages from main roads to driveways, parking lots, bike paths, sidewalks and runways. The Federal Highway Administration has given Brusaw $100,000 to develop the invention and Brusaw hopes to build a smart-road parking lot in the coming spring . Question: What can be the best title for the text? Yes or no, is the answer "Solar-powered smart road of the future"?
**Answer**
No