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.

Input: Consider Input: 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.

Output: What is the author's main purpose in this passage?

Input: Consider Input: Article: When Jean Calment entered the world in 1875, telephones and automobiles still lay in the future. Albert Einstein and Pablo Picasso were not yet born. The Eiffel Tower was 14 years from being built. As a teenager, she met Vincent Van Gogh, near her home in Arles, in the south of France. He was "very ugly, ungracious, impolite, sick--I forgive him, they called him loco." She recalled. When she died last week at age 122, she was the world's oldest person. (There were others who claimed to the title, but only Calment had the official documents to prove her age) Each February 21, her birthday, she would share the secrets of long life. Some years it was "a sense of humor", others it was "keeping busy". "God may have forgotten me," she once explained. The truth probably was that she had good genes. Her mother reportedly lived to be 86 and her father 94. Her life had its sadness: she outlived her husband, her only daughter and her grandson. According to a friend, she was _ "If you can't do anything about it," she reportedly said, "don't worry about it." In her last years she was nearly blind and deaf, but her health remained good. She ate a few bars of chocolate each week and continued smoking until a few years ago, when she could no longer light her own cigarettes. She never lost her sense of humor. On her 110thbirthday, she commented, "I have only ever had one wrinkle, and I am sitting on it." Her longevity made her famous. Her spirits made her eternal
Answer: To emphasize that Calement was born a long time ago.

Output: Why does the author mention Albert Einstein, Pablo Picasso and the Eiffel Tower?

Input: Consider Input: Article: There are various reasons why cancers appear to be on the increase. For one thing, though their sufferers are to be found in all age groups, cancers are particularly likely to attack persons in their middle and advanced years. Naturally, since people live longer these years, there are more cancer sufferers than before. Again, with better methods of diagnosis , doctors can more easily recognize cancerous growths that would formerly have passed unnoticed or that would have been wrongly diagnosed. It is also believed that certain habits and conditions of modern living, including heavy smoking and the pollution of the air, may leave people living in more cancer-causing conditions than before. We all look forward to the day when a simple medical test can find cancer while it is still small. Researchers around the world are working on _ . Most of their work deals with the examination of the blood. Researchers in Boston have found something in the blood of cancer patients that does not appear in healthy persons. The test showed which persons had cancer and which did not. It was correct more than 90 percent of the time. The researchers believe the test may be able to show cancer very clearly in its development. Cancers discovered early usually can be treated successfully. The test examines very small bits of fat in the blood called lipids . Cancers seem to change lipids although doctors do not know why. The test showed differences between the lipids of the persons with cancer and the lipids of those without cancer. The researchers say the new test could be a step to develop a simple way to check patients for cancer before the disease shows on an X-ray.
Answer: The middle age and the older.
Output: Who will fail cancer from the study of the researchers?