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.

[Q]: Article: Suppose that we lined up our roughly 14 million United States businesses in order of size, starting with the smallest, along an imaginary road from San Francisco to New York. There will be 4,500 businesses to the mile, or a little less than one per foot. Suppose further that we planted a flag each business. The height of the flag pole represents the yearly volume of sales , each $ 10, 000 in sales in shown by one foot of pole. The line of flagpoles is a very interesting sight. From San Francisco to about Reno, it is almost unnoticeable, a row of poles about a foot high. From Reno eastward the poles increase in height until, near Columbus, Ohio - about four - fifths of the way across the nation - flags fly about 10 feet in the air. But as we approach the eastern terminus , the poles suddenly begin to mount . There are about 300, 000 firms in the country with sales over $ 500, 000. These firms take up the last 75 miles of the 3,000 - mile road. There are 200, 000 firms with sales over $ 1 million. They take up the last 50 miles. Then there are 1, 000 firms with sales of $ 50, 000, 000 or more. They take up the last quarter of a mile before the city limits, flags flying at cloud height, 5 , 000 feet up . At the very gate of New York, on the last 100 feet of the last mile , we find the 100 largest industrial firms . They have sales of at least $ 1.5 billion, so that their flags are already miles high. Along the last 10 feet of road , there are 10 largest companies . Their sales are roughly $ 10 billion and up : their flags fly 190 miles in the air , almost in the stratosphere .
Answer: To tell us how the United States businesses are arranged.
[A]: What is the author's main purpose in this passage?

[Q]: Article: Friendship and friends continue to be the centre of our life. The relationship that we share with our friends is grounded in mutual care as our friends help us in _ our personalities as well. Even in this age of online social networking and e-cards, the need of keeping the network of friends, whether online or offline remains a primary concern for people. We may not completely understand what makes a friend but we all want to have a good number of friends around us. The first step to make friends with someone is to make them like you. If they don't like you in the first place, it is unlikely that they'll be eager to become your friends. To let someone know that you are specially interested in them, simple gestures like a little smile and calling them by their names can lay the basic foundation. To make the other person feel important to you, you need to be a good listener and encourage the other person to talk. Give your honest and sincere opinion but do not directly criticize or make fun of him or her. The second step of making someone your friend is to develop a mutual understanding. You need to share his or her experiences and it is necessary for you to develop a habit to see things from the other person's point of view. The third or final step towards friendship is to show your unconditional support and encouragement towards your friend. Moreover, you also need to be very clear about your expectations from your friend. If what you expect from the person you want to make friends with matches with what that person can give, the developing friendship between you and your friend is sure to be successful.
Answer: It is very important to understand each other.
[A]: Which one of the following is true according to this passage?

[Q]: Article: Coffee is one of the most popular drinks throughout the world today. In fact, according to some estimates, over 30% of all adults in the world drink coffee at least once a day on the average. Coffee contains a kind of drug called caffeine. Caffeine is a chemical that stimulates the nerves of the body. Drinking coffee tends to make people a little bit more awake--at least for a short time--because of this stimulating effect on the nervous system. A cup of coffee has, on the average, about 3% caffeine in it. One story of the discovery of the coffee plant relates to this effect of caffeine. According to the story, coffee was discovered in East Africa. The story says that coffee was first found by a goat farmer named Kaldi. This was about the year 850. Kaldi was leading his animals through the mountains and the goats were stopping repeatedly to eat the plants near the path. Suddenly, some of the goats started jumping up and down in a very strange way. Kaldi figured out that the goats were acting this way because of the plants they were eating. Kaldi himself tried eating some of the green beans that the goats had been eating. He, too, felt the stimulating effect of the beans. Kaldi wanted to prove what had happened, so he picked some of the beans and took them back to the village, where he told his story. The green bean got the name "Kaffa" and later "coffee" because the beans were discovered in a place called Kaffa in Africa. Then for years, people used to eat a few of the green Kaffa beans when they were in the mountains and needed extra energy to do their work. It was later found that the coffee beans could be picked and then dried until they turned brown, and then they could be stored. If the beans were dried and stored, they could be used at any time.
Answer: To become more awake.
[A]:
What is the purpose of drinking coffee?