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: World Wrestling Entertainment is the largest professional wrestling organization in North America. It was called World Wrestling Federation until it changed its name because of a legal dispute. Its more than one hundred wrestlers fight each other in competitive matches that are written and practiced before they are performed. Professional wrestlers are athletes but act as entertainers. They are not seeking athletic records, but instead want to excite an audience. To do this, they use unusual names and wear special clothing during wrestling matches. These wrestlers include the Stone Cold Stunner and the Undertaker. Most professional wrestling matches are between two men or two women. They fight inside an area called a ring that is separated from the audience by ropes. Each match continues until one wrestler forces the other's shoulders to the floor and holds them there for a count of three. Most World Wrestling Entertainment matches continue for only about four to seven minutes. An organization official called a promoter decides before the match who will win. But who wins and who loses is not the important thing in professional wrestling. The important thing is that the audience enjoys the pretend fight. Some wrestlers rarely win, but continue to be popular. Not all wrestling matches are between two people. Some are called tag team matches and involve teams of two, three or four wrestlers. Another kind of match is called a battle royal. It involves thirty to sixty wrestlers competing against each other. A wrestler loses when he or she is thrown out of the ring. The winner is the last wrestler still standing.
Answer: Because maybe there was another name similar to it.

Answer: Why did World Wrestling Federation change its name?

Question: Article: Science Daily (Apr. 27, 2008)-- Dutch ecologist Roxina Soler and her colleagues have discovered that subterranean and aboveground herbivorous insects can communicate with each other by using plants as telephones. Subterranean insects issue chemical warning signals through the leaves of the plant. This way, aboveground insects are warned that the plant is already "occupied". Aboveground, leaf-eating insects prefer plants that have not yet been occupied by subterranean root-eating insects. Subterranean insects send out chemical signals through the leaves of the plant, which warn the aboveground insects about their presence. This messaging makes it possible for spatially-separated insects to avoid each other, so that they do not compete for, the same plant. In recent years it has been discovered that different types of aboveground insects develop slowly if they feed on plants that also have subterranean insects and 'vice versa . It seems that a mechanism has developed through natural selection, which helps the subterranean and aboveground insects to communicate with each other. This avoids unnecessary competition. Through the "green telephone lines", subterranean insects can also communicate with _ , namely the natural enemy of caterpillars . Parasitic wasps lay their eggs inside aboveground insects. The wasps also benefit from the signals sent by the leaves, as these help them find more insects for their eggs. The communication between subterranean and above- ground insects has only been studied in a few systems. It is still not clear how widespread this phenomenon is, say the researchers.
Answer: By sending signals through the leaves.

Answer: How do subterranean and aboveground insects communicate with each other?

Question: Article: It was a long time since I visited my mother last time. The demands of my work and my three children had made it possible to visit her only occasionally. That night I called to invite her to go out for dinner and a movie. She thought about it for a moment, and then agreed. That Friday after work, I drove over to pick her up. When I arrived at her house, I noticed that she had curled her hair and was wearing the dress that she had worn to celebrate her last wedding anniversary. She smiled from a face that was as beautiful as an angel's. We went to a very nice and comfortable restaurant. After we sat down, I had to read the menu. A smile was on her lips."It was I who used to have to read the menu when you -were a child," she said. "Then it's time that you relax and let me return the favor," I responded. During the dinner we had an agreeable conversation-nothing special but catching up on recent events of each other's life. We talked so much that we missed the movie. As we arrived at her house later, she said,"I'll go out with you again, but only if you let me invite you." I agreed. A few days later my mother died of an unexpected heart attack. It happened so suddenly that I didn't have a chance to do anything for her. At that moment I understood the importance of saying "I love you" in time and giving our loved ones the time that they deserve. Nothing in life is more important than your family. Give them the time they deserve, because these things cannot be put off till "some other time".
Answer: She felt happy to meet the author.

Answer:
Why did the mother curl her hair and wear the dress that night?