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.

Ex Input:
Question: Do traditional clinical risk assessment tools accurately predict coronary atherosclerotic plaque burden : a CT angiography study?
Answer: Coronary risk stratification using a risk factor only-based scheme is a weak discriminator of the overall atherosclerotic plaque burden in individual patients. Patients with little or no plaque might be subjected to lifelong drug therapy, whereas many others with substantial plaque might be undertreated or not treated at all.

Ex Output:
no


Ex Input:
Question: Does metoclopramide influence the frequency of propofol-induced spontaneous movements?
Answer: Metoclopramide does not affect the frequency of propofol-induced movements, but propofol and fentanyl doses influence the frequency of movements during propofol induction.

Ex Output:
no


Ex Input:
Question: Does complete calcification of colorectal liver metastases on imaging after chemotherapy indicate sterilization of disease?
Answer: This preliminary study shows that although imaging evidence of complete calcification of liver metastases may be a good indicator of chemotherapy response, it does not imply sterilization of the malignancy.

Ex Output:

no