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.

Article: Women are friendly. But men are more competitive. Why? Researchers have found it's all down to the hormone oxytocin . Although known as the love hormone, it affects the sexes differently. "Women tend to be social in their behavior. They often share with others. But men tend to be competitive. They are trying to improve their social status," said Professor Ryan. Generally, people believe that the hormone exytocin is let out in our body in various social situations and our body creates a large amount of it during positive social interaction such as falling in love or giving birth. But in a previous experiment Professor Ryan found that the hormone is also let out in our body during negative social interactions such as envy. Further researches showed that in men the hormone oxytocin improves the ability to recognize competitive relationships, but in women it raises the ability to recognize friendship. Professor Ryan's recent experiment used 62 men and women aged 20 to 37. Half of the participants received oxytocin. The other half received placebo . [( )] [( :Love my Dog.)] After a week, the two groups switched with participants. They went through the same procedure with the other material. Following each treatment, they were shown some video pictures with different social interactions. Then they were asked to analyze the relationships by answering some questions. The questions were about telling friendship from competition. And their answers should be based on gestures, body language and facial expressions. The results indicated that, after treatment with oxytocin, men's ability to correctly recognize competitive relationships improved, but in women it was the ability to correctly recognize friendship that got better. Professor Ryan thus concluded: "Our experiment proves that the hormone oxytocin can raise people's abilities to better distinguish different social interactions. And the behavior differences between men and women are caused by biological factor that are mainly hormonal."
Answer: Oxytocin.
What causes men and women to behave differently according to the text?

Article: Did you know that vegetables can grow in the climates they are not used to? Cool climate vegetables like asparagus are now able to be grown in places as hot as Hawaii. In Hawaii, marine engineers have been able to actually let you believe such vegetables that they are living in cooler climates. In that way they grow faster and taste better. What these engineers have been using is very simply cold sea water. How did they use it? They place pipes in the soil and cold water flowing through them cools the earth. This causes plant growth and enables gardeners in tropical climates to grow crops from cooler climates. Also some of these pipes are exposed to the air and they make the air "wet" and thus water the gardens. What especially makes people happy about this process is that nothing to the natural conditions is being used. Another new use for cold ocean water is to cool buildings. Engineers believe that for example the entire west coast of the prefix = st1 /United Statescould be air-conditioned using seawater.
Answer: Cool the soil.
What does the new system enable the gardeners to do?

Article: We knew Sylvia and Jack had problems with their flats, but we hadn't been told the details. Not until they came for a weekend in October, that is. At dinner on the Friday evening Kitty said, "You wrote that the flat wasn't quite what you expected. Of course it could be too small. You're sharing with another couple, aren't you?" "Were sharing. Mother." Sylvia replied. "It really wasn't necessary." Jack explained proudly, "I've had a big rise, and we can easily manage. It's much better to be independent." "Oh, much," I agreed "What was the trouble?" Kitty asked, impatient and unwilling to let her go. "Nothing much." Sylvia said, "The flat is fine. It was the other couple. Sally and Tom Ford. You've never seen such an untidy pair. We shared the sitting room and the kitchen and the bathroom and got fed up with the mess of it all." "And what made it worse," Jack put in. "was that they accused us of the same sort of thing. Tom and I nearly came to blows when he locked up some of their wedding presents we were all using, as they used ours, naturally." "You take a chance when you make a sharing arrangement." Kitty said. "I am in my own flat." Sylvia said, "Sally and Tom left a month ago." "We could have left instead," Jack said, "But why we should leave? After all, the flat was in out names, not theirs. We were glad to see the back of them." Two weeks later Kitty and I retuned their visit for lunch on Sunday. It was the first time we had been to their flat. To say that we were shocked is not true, because we know our daughter extremely well. The flat had fairly recently been in quite good condition; it was now a chaos. I did not know how anyone could possibly live there. But Sylvia noticed nothing.
Answer: Jack's mother in law
Who was Kitty?