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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.
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Article: Even before my father left us, my mother had to go back to work to support our family.Once I came out of the kitchen, complaining, "Mom, I can't peel potatoes.I have only one hand." Mom never looked up from sewing."You get yourself into the kitchen and peel those potatoes," she told me."And don't ever use that as an excuse for anything again!" In the second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars, swinging from one high steel bar to the next.When it was my turn, I shook my head.Some kids behind me laughed, and I went home crying. That night I told Mom about it.She hugged me, and I saw her "we'll see about that" look.The next afternoon, she took me back to school.At the deserted playground, Mom looked carefully at the bars. "Now, pull up with your right arm," she advised.She stood by as I struggled to lift myself with my right hand until I could hook the bar with my other arm.Day after day we practiced, and she praised me for every rung I reached.I'd never forget the next time, crossing the rungs.I looked down at the kids who were standing with their mouths open. One night, after a dance at my new junior school, I lay in bed sobbing.I could hear Mom come into my room."Mom," I said, weeping, "none of the girls would dance with me." For a long time, I didn't hear anything.Then she said, "Oh, honey, someday you'll be beating those boys off with a bat." Her voice was soft and weak.I glanced at her to see tears running down her cheeks.Then I knew how much she suffered on my behalf.She had never let me see her tears.
Answer: Cold.
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Which of the following expressions can be used most suitably to describe Mom's attitude when she made the child peel potatoes?

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Article: There is a brown female Canadian duck that weighs only four hundred fifty grams. The duck had flown to the southern state of Florida for the winter.A hunter shot it on January fifteenth and took it to his home in the city of Tallahassee.He put it in the refrigerator .Two days later the man's wife opened the refrigerator door.The duck lifted its head and looked at her.It was alive! The family took the duck to a doctor who treats animals.The doctor gave the duck to the Goose Creek Animal Sanctuary .Animal sanctuaries provide homes for animals and teach people about their care. The doctor said it was easy to understand why people thought the duck was dead. He said ducks generally do not move a 1ot,especially after being shot.And he said its low body temperature helped it survive in the refrigerator. _ was enough to make the duck famous around the world.The Tallahassee newspaper published the story that was re-printed in many different countries.But that was not the end of the story. Workers at the wildlife sanctuary named the duck Perky.And they got the doctor to give an operation to repair the duck's damaged wing.During the operation,Perky stopped breathing--not just once but two times.The doctor tried to save Perky by giving her oxygen.But he finally said the duck had died.A few seconds later, however, Perky began to move.Reports say the people in the operating room were so happy that they cried. Workers at the wildlife sanctuary say Perky will not have any more operations. It seems the drugs that were used had side-effects on her.Perky is expected to live at the sanctuary.And a local company has begun to sell T-shirts showing a picture of the lucky duck. Money from the sale of the shirts will help pay for Perky's care.
Answer: The hunter shot the duck in the wing.
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Which of the following statements is TRUE?

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Article: It takes two to duet , and one question for scientists is how these coordinated performances arise -- in birds. Are they the result of cooperation, a way in which one pair signals to others that they've got it together? Or are they the result of conflict, evolving to avoid one partner's song interfering with the other's? A study of duetting in Peruvian warbling antbirds suggests that it might be a little of both, and that context is everything. Joseph A. Tobias and Nathalie Seddon of the University of Oxford show in Current Biology that sexual conflict can cause the female of a pair that normally cooperates to "jam" the male's song by singing over it. The researchers exposed antbird pairs to recorded songs of other antbirds and monitored the songs the pairs produced. In one experiment, they played the songs of an intruding pair. In this case, the resident pair "both are likely to lose their territory, so both should cooperate," Dr. Tobias said. And they do. They produce a coordinated duet that in effect tells the intruders to keep away. But when the researchers played the song of a single female, the pair behaved differently. "You'd expect the resident female to be highly motivated to defend her position in the partnership," Dr. Tobias said. And that's what occurs. The male sings its heart out, flirting with the single female, and the female of the pair does its best to interfere with the song by singing over it, apparently to make her mate less attractive to the other female. "It's clear that the male doesn't like what she's doing," Dr. Tobias said. The behavior "breaks up what is otherwise a very cooperative situation into a more complicated signal," he added. It's the first evidence of this kind of signal jamming among pairs, Dr. Tobias said. And in that it leads the male to alter its song to avoid the female's interfering notes, it shows that this kind of conflict could, over a long period, drive the evolution of coordinated song.
Answer: Their instinct.
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What is the key factor of antbirds' duet?