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.

[Q]: Article: Most people think of a camel as an obedient beast of burden, because it is best known for its ability to carry heavy loads across vast stretches of desert without requiring water. In reality, the camel is considerably more than just the Arabian equivalent of mule . It also possesses a great amount of intelligence and sensitivity. The Arabs say that camels are so acutely aware of injustice and ill-treatment that a camel owner who punishes one of the beasts too hard finds it difficult to escape the camel's revenge .Apparently, the animal will remember an injury and wait for an opportunity to get revenge. In order to protect themselves from the vengeful beasts, Arabian camel drivers have learned to trick their camels into believing they have achieved revenge. When an Arab realizes that he has excited a camel's rage, he places his own garments on the ground in the animal's path. He arranges the clothing so that it appears to cover a man's body. When the camel recognizes its master's clothing on the ground, it seizes the pile with its teeth, shakes the garments angrily and steps on them in a rage again and again. In the end, after its rage has died away, the camel leaves, believing its revenge is completed. Only then does the owner of the garments comes out of hiding, safe for the time being, thanks to this clever trick.
Answer: camels try to punish people who ill-treated them
[A]: From this passage we can conclude that _

[Q]: Article: Gwendolyn Brooks wrote hundreds of poems during her lifetime. She was known around the world for using poetry to increase understanding of black culture in America. During the 1940's and the 1950's, Gwendolyn Brooks used her poems to describe conditions among the poor,racial inequality and drug use in the black community. She also wrote poems about the struggles of black women. But her skill was more than her ability to write about struggling black people. She combined traditional European poetry styles with the African American experience. Gwendolyn Brooks once said that she wrote about what she saw and heard in the street. She said she found most of her materials through looking out of the window of her second-floor apartment in Chicago, Illinois. In her early poetry, Gwendolyn Brooks wrote about the South Side of Chicago, where many black people live. In her poems, the South Side is called Bronzeville. It was "A Street in Bronzeville" that gained the attention of literary experts in 1945. Critics praised her poetic skills and her powerful descriptions about the black experience during the time. The Bronzeville poems were her first published collection. In 1950, Gwendolyn Brooks became the first African American to win the Pulitzer Prize for Literature. She won the prize for her second book of poems called "Annie Allen". "Annie Allen" is a collection of poetry about a Bronzeville girl as a daughter, a wife and a mother. She experiences loneliness, loss, death andpoverty . Gwendolyn Brooks said that winning the prize changed her life. Her next work was a novel written in 1953 called "Maud Martha". "Maud Martha" attracted little attention when it was first published. But now it is considered an important work by some critics. Its main ideas about the difficult lives of many women are popular among female writers today.
Answer: she introduced black culture by writing poems
[A]: Gwendolyn Brooks became world-famous because _ .

[Q]: Article: Dear iPhone 4 Users, The iPhone 4 has been the most successful product in Apple's history. It is the best smartphone ever, and most users have told that they love it. So we were surprised when reading reports of reception problems, and we immediately began researching them. To start with, holding tightly almost any mobile phone in certain ways will reduce its reception by 1 or more bars of signal strength. This is true of iPhone 4, iPhone 3GS, as well as many other phones. But some users have reported that iPhone 4 can drop 4 or 5 bars when tightly held in a way. This is a far bigger drop than normal, and as a result some have said the iPhone 4 has a faulty antenna design. Upon research, we find that the formula we use to calculate how many bars of signal strength to display is totally wrong. Our formula usually mistakenly displays 2 more bars than it should for a given signal strength. The big drop in bars is because the high bars were never real in the beginning. We will give a free software update to correct the formula. This software update will also be available for iPhone 3GS. If you are not fully satisfied, you can return your undamaged iPhone to any Apple Retail Store or the online Apple Store within 30 days of buying and get all your money back. Thank you for your patience and support. Apple
Answer: a wrong formula
[A]:
The iPhone 4 drops more bars than normal when tightly held because of _ .