input: Please answer the following: Answer this question: what is metformin used for?
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output: Metformin ( BP , pronounced , ; originally sold as Glucophage) is an oral antidiabetic drug in the biguanide class.


input: Please answer the following: Answer this question: what are the side effects for lyme disease?
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output: Early symptoms may include fever , headache , fatigue , depression , and a characteristic circular skin rash called erythema migrans (EM).


input: Please answer the following: Answer this question: where did the early humans live??
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output: According to the Recent African Ancestry theory , modern humans evolved in Africa possibly from Homo heidelbergensis , Homo rhodesiensis or Homo antecessor and migrated out of the continent some 50,000 to 100,000 years ago, replacing local populations of Homo erectus, Homo denisova , Homo floresiensis and Homo neanderthalensis.


input: Please answer the following: Answer this question: what are metaphors used for?
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output:
Metaphor is a type of analogy and is closely related to other rhetorical figures of speech that achieve their effects via association, comparison or resemblance including allegory , hyperbole , and simile .