Definition: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Input: Question: Does fish oil supplementation alter energy efficiency in healthy males?
Answer: FO supplementation did not significantly alter energy metabolism and energy efficiency during exercise in healthy humans.
Output:
no