You will be given a definition of a task first, then some input of the task.
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.

Question: Is hepatitis C virus-associated thrombocytopenia related to serum thrombopoietin levels?
Answer: An impaired TPO production did not explain the development of thrombocytopenia in HCV and other mechanisms must be involved.
Output:
no