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 vitamin E supplementation alter physiological performance at fixed blood lactate concentrations in trained runners?
Answer: Daily VE supplementation for 35 days does not enhance or impair physiological performance at fixed blood lactate concentrations. Long-term VE supplementation for the purposes of performance enhancement is not recommended.
[EX A]: no

[EX Q]: Question: Is multivitamin-mineral supplementation as efficacious as is iron supplementation in improving hemoglobin concentrations in nonpregnant anemic women living in Mexico?
Answer: MM supplements may not be as efficacious as is iron alone in improving the hemoglobin status of anemic women.
[EX A]: no

[EX Q]: Question: Is the alpha 2C Del322-325 adrenergic receptor polymorphism associated with heart failure due to idiopathic dilated cardiomyopathy in black Africans?
Answer: Homozygosity for the alpha 2C Del322-325 polymorphism is not associated with an increased risk for heart failure due to idiopathic DCM in black South Africans.
[EX A]:
no