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: Is high salt intake associated with a higher risk of cardiovascular events : a 7.2-year evaluation of a cohort of hypertensive patients?
Answer: In a cohort of hypertensive patients, high salt intake independently predicts the occurrence of CV events, particularly of stroke.

Ex Output:
yes


Ex Input:
Question: Are proliferation of colo-357 pancreatic carcinoma cells and survival of patients with pancreatic carcinoma altered by insulin glargine?
Answer: Regular human insulin and insulin glargine may be used to treat diabetes in patients with pancreatic cancer.

Ex Output:
no


Ex Input:
Question: Are the status of rheumatoid factor and anti-cyclic citrullinated peptide antibody associated with the effect of anti-TNFα agent treatment in patients with rheumatoid arthritis : a meta-analysis?
Answer: Neither the RF nor anti-CCP antibody status in RA patients is associated with a clinical response to anti-TNFα treatment.

Ex Output:

no