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.

Example Input: Question: Is premature immunosenescence associated with memory dysfunction in rheumatoid arthritis?
Answer: RA patients had reduced memory performance compared to healthy controls. Expansion of activated and senescence-associated T cells was correlated with poor memory performance.
Example Output: yes

Example Input: Question: Does growth hormone ( GH ) treatment restore endothelial function in children with GH deficiency?
Answer: These results indicate that endothelial function is impaired in children with GHD. GH therapy does not restore the impairment.
Example Output: no

Example Input: Question: Does leucocyte count indicate carotid plaque instability in stroke patients?
Answer: The number of Le is associated with the phenomenon of carotid plaque instability and may be a useful additional marker of increased risk for developing acute cerebral infarction.
Example Output:
yes