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: Early one morning,more than a hundred years ago,an American inventor called Elias Howe finally fell asleep.He had been working all night on the design of a sewing machine but he had run into a very difficult problem: It seemed impossible to get the thread to run smoothly around the needle. Though he was tired,Howe slept badly.He turned and turned.Then he had a dream.He dreamt that he had been caught by terrible savages whose king wanted to kill him and eat him unless he could build a perfect sewing machine.When he tried to do so,Howe ran into the same problem as before.The thread kept getting caught around the needle.The king flew into the cage and ordered his soldiers to kill Howe.They came up towards him with their spears raised.But suddenly the inventor noticed something.There was a hole in the tip of each spear.The inventor awoke from the dream,realizing that he had just found the answer to the problem.Instead of trying to get the thread to run around the needle,he should make it run through a small hole in the center of the needle.This was the simple idea that finally made Howe design and build the first really practical sewing machine. Elias Howe was not the only one in finding the answer to his problem in this way.Thomas Edison,the inventor of the electric light,said his best ideas came into him in dreams.So did the great physicist Albert Einstein.Charlotte Bronte also drew in her dreams in writing Jane Eyre. To know the value of dreams,you have to understand what happens when you are asleep.Even then,a part of your mind is still working.This unconscious ,but still active part understands your experiences and goes to work on the problems you have had during the day.It stores all sorts of information that you may have forgotten or never have really noticed.It is only when you fall asleep that this part of the brain can send messages to the part you use when you are awake.However,the unconscious part acts in a special way.It uses strange images which the conscious part may not understand at first.This is why dreams are sometimes called "secret messages to ourselves ".
Answer: the only person at the time who knew the value of dreams
According to the passage,Elias Howe was _ .

Article: When people get bad toothaches, they often have to eat soft, easily chewed food. When lions get bad toothaches, they eat people? That' s the conclusion of a zoologist at the Field Museum of Natural History in Chicago and a dentist who works on carnivores ., Lions don't normally prey on people. Every once in a while, however, a lion will go on a human-eating diet. The most famous such tragedy happened in 1898, when two lions killed and ate 135 railway workers in prefix = st1 /Kenya. Examining the preserved skulls of the two big cats, zoologist Bruce Patterson and dentist Ellis Neiburger found that both animals had been suffering from several dental and |aw problems. One lion had three missing teeth and a loose, unsteady lower canine that was probably useless. Canines are pointed teeth that hunting animals use for gripping and piercing prey ) .The two lions might have been so badly disabled that they couldn't bite down forcefully, say the researchers. Consequently, the lions might have abandoned their normal, more difficult prey and turned to humans. "Humans are easy preys, " said Patterson. "We're very slow, we don't hear very well, and we don* t see very well in the darkness. " The research calls their idea the Infirmity Theory. It was inspired partly by the work of Jim Corbett, a tiger hunter in Indiain the 1930s. Corbett was regularly called in to hunt tigers that had been dining on Indian villagers. Time after time, Patterson discovered that the killer tigers were suffering from some ill-healthy conditions.
Answer: reasons for some lions eating people
The original aim of the study is to look for _ .

Article: If you are in a crowd, a first and most important thing is to make yourself familiar with your surroundings and mentally notice alternate exits. No matter where you are, make sure you always know how to get out. Make sure you know the type of ground you are standing on. For example, in a crowd of moving people wet ground can be dangerous, causing you to fall. You should know the general atmosphere of the event, as panic situations can often be predicted. When in danger, a few seconds can make all the difference, giving you the possibility of taking advantage of your escape route. Always stay closer to the escape route If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you could easily get injured or even be killed by being stepped on by other people. Instead, move in the same direction of the crowd; take advantage of any space that may open up to move sideways to the crowd movement where the flow is weaker. Keep your hands up by your chest, which will protect your chest during the movement. If you fall, get up quickly. If you can't get up because you are injured, get someone to pull you back up. If you fall and can not get up, keep moving by crawling in the same direction of the crowd. Do not lie on your stomach or back, as this is dangerous for your body. The worst situation is to be pushed by the crowd against an immovable object. Try to shun High walls, as the crowd pressure can build up rapidly. After you're pushed forward, the way you move is on a diagonal . There's always space between people. You work your way out that way till you get out of the crowd.
Answer: be familiar with the surroundings
When you are in a crowd the first thing you do is _ .