input: Please answer the following: Keith is a doctor in a local hospital. Today, he is seeing three patients, patient A, patient B, and patient C. Patient A has been suffering from hepatitis B all his life; patient B is recovering from hepatitis B on his own; and patient C doesn't have hepatitis B. Keith would now compare the symptoms of these patients. Which patient would more likely risk a damaged liver, patient A or patient B?
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output: patient A
Please answer this: Doctor Brown examined two groups of patients: Group O, with members over 65, and group P, with members under 65 years of age. The study was about the effects on aging on the human body. Which group has fewer people retired from work?
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Answer: group P
Problem: 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 came up with newer way of looking at things, Stephen Hawking or scientist B?

A: Stephen Hawking
Problem: Given the question: John is studying the different states of matter. Today, he has a matter in three states in front of him, state A, state B, and state C. State A is in solid state. State B is in liquid state. And, state C is in gaseous state. He needs to determine the properties of each state. In which state the distance between particles are smaller, state B or state C?
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The answer is:
state B
input question: Michael and Robert are scientists who work in a nuclear reactor facility. Michael was replacing a fuel rod in the nuclear reactor when a small explosion happened, causing Michael to be exposed to high doses of radiation in a short period of time. Robert was in the adjacent room when the explosion happened, and as a result he only suffered low doses of radiation. Who is less likely to die after this event????
output answer: Robert
input question: Two brothers Syd and Dan went to college. Syd studied plate tectonics and mantle melting. His brother Dan got to study types of soil and pedology. Which brother studied less about lowering pressure which also lowers the mantle's melting point????
output answer:
Dan