TASK DEFINITION: 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.
PROBLEM: 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.

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

PROBLEM: Article: Seven years ago I was 13 years old. I still remember to this day where I was and how it all came down. I was in my social studies classroom, when a teacher came back and told us that the first building of the World Trade Center was hit by a plane. We immediately stopped our work and turned on the television. Throughout half the day we watched TV until the school was forced to let all of us home early. I walked home and immediately turned on the television and watched until my bedtime. I remember always seeing the towers walking to my Tae Kwon Do school; to me, a boy teenager, it was a great thing because at that time I have never seen any other building that caught my eye as much as _ did. And walking to my school that day was just a horrifying dream. Crossing the busy road of the Bell Pike was a big cloud of smoke and dust. It was very upsetting. Every day after that horrific day I looked up to the once stood Twin Towers just to see nothing there. To my eyes, that day will always be in my mind and in my heart, even though I didn't lose any loved ones, I still feel the pain as if I did. September 11th, 2001 will never be forgotten.
Answer: He was in the classroom.

SOLUTION: Where was the writer when the tragedy took place?

PROBLEM: Article: Calling all poets! TIME For Kids(TFK) has a challenge for you. WHO: The contest is open to students who are 8 to 13 years old. WHAT: Write a funny, rhyming poem and enter it in the TFK Poetry Contest. By entering, the entrant should promise that the poem is an original one that does not copy another poet's work, has not been published in an y medium and has not won an award. HOW: Send your poem by e-mail to contest@poetry4kids.com. The subject line of your e-mail message should read "TFK POETRY CONTEST". Be sure to include your first name only, your e-mail address and your parents' e-mail address. Limit one entry per person or e-mail account. The sponsor is not responsible for lost, late or incomplete entries, or those not received for any reason. WHEN: This contest begins 12:01 a.m. on January 13,2013, and ends 11:59 p.m. on March 1,2013. JUDGING: All entries will be judged by poet Kenn Nesbitt, based on the following standards: creativity and o riginality (50%),use of language and rhyme (25%) and relatedness to contest theme(25%).Winner will be informed by e-mail and must respond within five days. WINNER'S LIST: For names of the winner and finalists, visit timeforkids.com (after April 1,2013, you can get for a period of 10 days). PRIZE: Our judge will select four semifinalists from which one grand-prize winner and three finalists will be chosen. The one grand-prize winner will receive an online class visit from poet Kenn Nesbitt and a signed copy of one of his books of poetry. The poem of the grand-prize winner will be published on timeforkids.com. The finalists will receive signed copies of one of Nesbitt's books of poetry. The poems of finalists will be published on timeforkids.com.
Answer: A love poem which has been kept secret from others.

SOLUTION:
Which may be a proper work for the TFK Poetry Contest?