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: Does fK778 attenuate cytomegalovirus-enhanced vein graft intimal hyperplasia in a rat model?
Answer: These data suggest a role of CMV in venous graft failure. Also, our results suggest a prospective role for the new immunosuppressive drug FK778 in the prevention of (CMV-mediated) vein graft intimal hyperplasia.
[EX A]: yes

[EX Q]: Question: Does prescription consisting of Vitamin C and Baicalin inhibit tumor growth by enhancing the antioxidant capacity in vivo?
Answer: PVB shows better antitumor effect than Vc and baicalin used alone, and it can significantly enhance the immunity and antioxidant capacity of the mice.
[EX A]: yes

[EX Q]: Question: Does aspirin reduce the clinical benefits of the mineralocorticoid receptor antagonist eplerenone in patients with systolic heart failure and mild symptoms : an analysis of the EMPHASIS-HF study?
Answer: Aspirin use in patients with chronic systolic heart failure and mild symptoms did not substantially reduce the overall beneficial effects of the MRA eplerenone contrary to what has been described in some studies with ACE inhibitors.
[EX A]:
no