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.

[Q]: Question: Is repeated sputum microscopy essential for monitoring tuberculosis treatment response?
Answer: The yield of a second on-the-spot sputum specimen is negligible, provided that the first smear is from an overnight specimen. From the data available, it is evident that repeated follow-up smears are not essential for documenting treatment outcome.
[A]: no


[Q]: Question: Does combined isometric and vibration training enhance strength beyond that of isometric training alone?
Answer: The present study provides evidence to suggest that there are no greater gains to be incurred by the addition of a vibratory stimulus to traditional strength training.
[A]: no


[Q]: Question: Do polymorphisms in cytokine genes predict progression to end-stage heart failure in children?
Answer: No evidence is found to support the hypothesis that these polymorphisms for cytokine genes influence progression to end-stage heart failure in children undergoing transplantation because of cardiomyopathy or congenital heart disease.
[A]:
no