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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Question: Article: Traditional fairytales are being abandoned by parents because they are too horrible for their young children, a study found. Research revealed one in five parents dislike old classics such as Snow White and the Seven Dwarves and Rapunzel and are in favor of more modern books. One third of parents said their children have been left in tears after hearing the horrible details of Little Red Riding Hood. And nearly half of mothers and fathers refuse to read Rumplestiltskin to their kids as the themes of the story are about kidnapping and crimes. Similarly, Goldilocks and the Three Bears was also a tale likely to be left on the book shelf as parents felt it forgives stealing. The survey of 2,000 adults was conducted to mark the launch of the hit US drama GRIMM, which starts tonight at 9pm on Watch, and sees six episodes based on traditional fairytales. The survey found a quarter of parents questioned wouldn't consider reading a fairytale to their child until they had reached the age of five, as they prompt too many awkward questions from their children. Steve Hornsey, General Manager of Watch, said: "Bedtime stories are supposed to calm down children and send them off to sleep soundly. But as we see in GRIMM, fairytales can be dark and dramatic tales so it's understandable that parents worry about reading them to young children." "As adults we can see the innocence in fairytales, but a five-year-old child with an over active imagination could take things too seriously. Despite the dark nature of classic fairytales, as we see in GRIMM, good will triumph over evil and there is always a moral to the story." The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares. However, half of parents said traditional tales are more likely to have a strong moral message than a lot of modern kids' books, such as The Gruffalo, The Hungary Caterpillar and the Mr. Men books.
Answer: Rumplestiltskin may have bad influence on Children

Answer: Why don't some parents want to read Rumplestiltskin to their kids?

Question: Article: Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two kilograms. The robot is designed to snake through dark, narrow air conditioning ducts and clean them.A pair of LEDs fitted on the robot light up the dirty scenery, so _ can be captured by a camera. In order to control it more easily, Mr. Azad chooses to fix DuctBot on wheels.The robot can clean off lots of dirt, as well as dead pigeons and insects.Keeping indoor air in good quality and monitoring carbon-dioxide levels in buildings with central air conditioning is a challenge.It is important in some places where clean air can mean a difference between life and death, such as hospitals.Dirty air has a bad influence on people's health. EPSCO, a Dubai-based company which specializes in improving indoor air quality, read about Mr. Azad's invention in a national newspaper after he had won an international robotics competition.EPSCO had cleaning equipment, but it needed someone to get into those ducts to do the dirty, dangerous work.Across India, for example, the task still falls to children.They are small enough to go through those ducts. In 2005, Mr. Azad who was still at university decided to do something about it.Six years later his own company, Robosoft Systems, has Bluestar, EPSCO and the Indian Navy, some leading air condition makers, as partners. Mr. Azad and his ten employees are currently exploring robot designs to examine oil tanks or sewage pipes.Their biggest challenge is to make the robots user-friendly enough.Mr. Azad hopes that the robot could eventually be operated not by engineers but by workers.There will be lots of difficulties they need to overcome in the future.
Answer: It is designed to move like a snake in the ducts.

Answer: What can we learn about Ductbot?

Question: Article: There was a little boy visiting his grandparents on their farm. He was given a slingshot to play with out in the woods. He practiced in the woods, but he could never hit the target. Getting a little discouraged, he headed back for dinner. As he was walking back he saw Grandma's pet duck. Just out of impulse ,he let the slingshot fly, hit the duck in the head and killed it. He was shocked! In a panic, he hid the dead duck in the wood, only to see his sister watching! Sally had seen it all, but she said nothing. After lunch the next day Grandma said, "Sally, let's wash the dishes". But Sally said, "Grandma, Johnny told me he wanted to help in the kitchen. "Then she whispered to him, "Remember the duck?" So Johnny did the dishes. Every time Grandma asked Sally to do some housework, she will repeat the same story. After several days of Johnny doing both his work and Sally's, he finally couldn't stand it any longer. He came to Grandma and confessed that he had killed the duck. Grandma gave him a hug and said, "Sweetheart, I know. You see, I was standing at the window and I saw the whole thing, but because I love you, I forgave you. I was just wondering how long you would let Sally make a slave of you. " In our daily life, whatever we do, God is always standing at the window and he sees the whole thing. He's just wondering how long you will let the devil make a slave of you. The great thing about God is that when you ask for forgiveness, he not only forgives you, but also he forgets.
Answer: She reminded his brother of his slingshot.

Answer:
What did Sally mean by saying "Remember the duck" in Para 3?