input: Please answer the following: There is a long history of martial arts competition in Fujian Province of China. Interestingly, one can also place bets on competitors. David is a martial arts enthusiast, watching every martial arts movie he can find. This year David and his friend John is visiting the Fujian Province to see the martial arts competition. There are two rounds of competition, round A and round B. Round A competitors would display southern Chinese martial arts while round B competitors would display northern Chinese martial arts. Which round would display more developed qinna techniques, round A or round B?
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output: round A

input: Please answer the following: Two geologists studied the Earth's crust. Benny studied mantle melting, while Vinny studied more about crust displacement. Which scientist observed that lower pressures (which lowers the melting point) trigger mantle melting?
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output: Benny

input: Please answer the following: Bob and Andy were two nature enthusiasts. They went camping together once a month. Bob was into bird watching, while Andy was fascinated with frogs and salamanders. They went on a trip last week-end and they were very happy with what they had observed. Which friend heard fewer male frogs producing a mating call?
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output: Bob

input: Please answer the following: Mike lives in a cold mid-western city, where there is not much predator prey interaction. Mike noticed that in his city some squirrels have darker coat, while others have lighter coat. He also knew that darker coats are more suitable in cold environment with less predator prey interaction. He started thinking why the squirrels developed different coat colors. Which squirrels would have greater chance of survival, lighter or darker?
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output:
darker