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 Input:
Question: Are common genetic variants related to vitamin D status associated with esophageal squamous cell carcinoma risk in China?
Answer: Our results suggested that common genetic variants related to vitamin D levels are not associated with risk of ESCC in this Chinese population.

Ex Output:
no

Ex Input:
Question: Does concomitant consumption of red wine and polyunsaturated fatty acids in edible oil influence the peroxidation status of chylomicron lipids despite increasing plasma catechin concentration?
Answer: Red wine consumption increases plasma catechins, but does not influence lipid peroxidation in postprandial CM.

Ex Output:
no

Ex Input:
Question: Do pre-procedural plasma levels of C-reactive protein and interleukin-6 predict late coronary angiographic restenosis after elective stenting?
Answer: Coronary stenting is associated with transient increases in both CRP and IL-6 levels. However, pre-procedural CRP and IL-6 levels do not predict late coronary angiographic restenosis.

Ex Output:
no