In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: Mountain building and earthquakes are some of the responses of rocks when subected to stress. Question: Mountain building and earthquakes are some of the responses of rocks when subected to what?

A: stress
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Q: Sentence: The energy stored in the organic molecules of food ultimately comes from the sun. Question: The energy stored in the organic molecules of food ultimately comes from where?

A: sun
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Q: Sentence: Complement proteins proteins bind to the surfaces of microorganisms and are particularly attracted to pathogens that are already tagged by the adaptive immune system. Question: Which proteins bind to the surfaces of microorganisms and are particularly attracted to pathogens that are already tagged by the adaptive immune system?

A:
complement proteins
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