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: Does weekend onset of acute myocardial infarction have a negative impact on outcome in Japan?
Answer: There were no obvious differences in outcome for Japanese AMI patients in the weekday- or weekend-onset group, suggesting the quality of the Japanese healthcare system is similar for the entire week.
Output:
no