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.

[EX Q]: 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.
[EX A]: yes

[EX Q]: Question: Does propofol induce pulmonary dysfunction in stressed endotoxic pigs receiving Intralipid?
Answer: Small doses of endotoxin, when given to pigs, induce major perturbations of cardiopulmonary function. Neither Intralipid, high vs. low dose, nor diisopropyl phenol, at sedating vs. anesthetizing doses, worsened the physiologic derangement associated with the stress of low-dose endotoxemia.
[EX A]: no

[EX Q]: Question: Is postoperative nadroparin administration for prophylaxis of thromboembolic events associated with an increased risk of hemorrhage after spinal surgery?
Answer: Although retrospective, this is to date the largest study providing information about the hemorrhage rate associated with early postoperative anticoagulation following spinal surgery. The results confirm that early postoperative pharmacological thromboembolic prophylaxis using nadroparin in patients with spinal surgery is not associated with an increased risk of postoperative hemorrhage.
[EX A]:
no