input: Please answer the following: This year scientist found concrete evidence of existence of black holes by taking photograph of one. Unfortunately, the originator of black hole theory, Stephen Hawking, was never awarded a Nobel prize despite letting science advance in big leap because his theory could not be verified during his lifetime. On the other hand, scientist B has received Nobel prize because he has based his theory on the earlier theory of scientist A. Which scientist might have improved an earlier idea, scientist A or scientist B?
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output: scientist B

input: Please answer the following: Two oceans have divergent plate boundaries at the bottom of their floor. The Arctic ocean has a single dormant divergent plate, while the Pacific ocean has seven diverging tectonic plates under its waters. Which ocean experiences more adiabatic expansion?
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output: Pacific

input: Please answer the following: India decided to introduce several exotic species into their environment, while Singapore was very protective of its native species. Which country didn't observe that non-native species easily adapt and grow?
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output: Singapore

input: Please answer the following: Two brothers, Tom, aged 26, and Paul, aged 16, started weight-lifting to gain more muscle mass. Three years later they were 20-25 lbs. heavier. Which brother had active growth cartilages?
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output:
Paul