Instructions: 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: Is c5 variant associated with decreased risk of coronary artery disease in outpatients with severe hypercholinesterasemia?
Answer: The prevalence of the C5 variant was relatively high, and the C5 variant is associated with decreased risk of CAD in outpatients with severe hypercholinesterasemia.
Output:
yes