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: Humans may be a bad influence on their best friends---at least when it comes to problem-solving. In a task that wasn't very tough, wolves performed must better than dogs. All the animals had to do was pull the lid off a food container, containing a sausage treat. Monique Udell studies animal behavior at Oregon State University in Corvallis. She tested 10 pet dogs and another 10 dogs from an animal shelter. In one set of tests, a person was nearby but did not encourage or discourage the dogs. Those dogs typically spent 10 to 15 percent of their time gazing at the person. They spent a mere 5 percent of their time or less touching the container. Udell offered the same challenge to wolves. These animals had been raised and fed by people but still lived outdoors. Here, the wolves didn't look at the nearby person. Instead, they devoted about 90 percent of the time to struggling with the box holding a treat. When someone walked around the dogs and actively encouraged them to keep trying to open the box, the dogs did spend more time handling the problem. A few more even managed to open the box. But their success rate still did not match the wolves. The dogs and wolves were also tested when no one was present. But even then, the dogs didn't paw or teat the box much more than they did when a human was present.
Answer: It made them able to compete with the wolves

Output: What was the effect of encouragement on the dogs?

Input: Consider Input: Article: Coca-Cola is probably the most famous brand in the world, and in some areasyou can even access it easier than clean drinkable water. Although the company is trying to present itself as a health-conscious company, you can't really say that drinking cola is healthy for you. Still, we all drink cola, some more and some less, and we tell ourselves that it's all okay as long as we don't overdo it. However, Coca-Cola has other functions besides drinking. Cola removes the tarnish from old pennies. Got some old rusty pennies? Not to worry! Put them inside a glass of cola and let them rest for a while. When you get them out, you'll have shiny pennies that will look as if they were coined a couple of days ago. If you couldn't clean those pennies with industrial acids, just buy a can of cola and let it do its magic! You can remove gum from your hair with cola. If you've got gum stuck in your hair and don't know a better way to get it out, don't worry, you won't have to cut it. Just pour some cola into a bowl and dip the part of your hair with gum on it inside. Leave it for a couple of minutes and then simply wipe off the gum. You can make an exploding fountain. You probably know about this one. You can make an exploding fountain by putting a mint inside a two-liter bottle. Then move away from the bottle and get ready for a Coca-Cola explosion. This is a fun thing to do, but it is also a warning -- don't eat a mint and drink cola at the same time, because a similar thing could happen to your stomach.
Answer: Take the place of acids.

Output: What can cola be used to do?

Input: Consider Input: Article: Charlie Chaplin was one of the greatest and most widely loved silent movie stars. From Easy Street (1917) to Modern Times (1936), he made many of the funniest and most popular films of his time. He is best known for his character "the little tramp ". It is this kind-hearted character that we connect with the time of silent movies. Born in London in 1889, Chaplin first visited America with a theater company in 1907. Appearing as Billy in the play Sherlock Holmes, the young Chaplin toured the country twice. On his second tour, he met Mack Sennett and was signed to Keystone Studios to act in films. In 1914, Chaplin made his first short film, Making a Living. That same year, he made thirty-four more short films. These early silent shorts allowed very little time for anything but physical comedy, and Chaplin was extremely good at it. Chaplin was known as one of the most demanding men in Hollywood. No matter how big or tiny the size of the part, Chaplin walked each actor through every scene. Chaplin knew that a successful scene wasn't simply about the star, but about everyone on the screen. He required that all the actors and actresses work together in every performance. The only way to achieve it was to keep complete control over every scene. As he became more popular, he used more and more creative and difficult filming techniques. Movies such as his 1925 hit, The Gold Rush, required endless reworking of scenes and rebuilding of sets. Though Chaplin is of the silent movie era, his achievements were carried over into the films of today. His strictness and concern for the processes of acting and directing made his films great and led the way to a new and more wonderful cinema. Chaplin's working life in entertainment lasted over 75 years, from the Victorian stage and the music hall in the United Kingdom as a child performer, until close to his death at the age of 88.
Answer: Sherlock Holmes.
Output: Which of the following is NOT a Charlie Chaplin film?