Definition: 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: Are all-cause and cause-specific mortality in rheumatoid arthritis greater than expected when treated with tumour necrosis factor antagonists?
Answer: Morbidity, other than infection, and mortality are not higher than expected in patients with RA treated with TNF antagonists.
Output:
no