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 the G-308A variant of the Tumor Necrosis Factor-alpha ( TNF-alpha ) gene associated with obesity , insulin resistance and body fat distribution?
Answer: Our study did not detect any significant association of the G-308A TNFalpha polymorphism with obesity or with its clinical and metabolic abnormalities in this population. Our data suggests that, in our population, the G-308A TNFalpha polymorphism is unlikely to play a major role in the pathogenesis of these conditions.

Ex Output:
no


Ex Input:
Question: Does carriage of the methylenetetrahydrofolate reductase ( MTHFR ) C677T polymorphism influence the first and second trimester uterine artery Doppler flow?
Answer: In summary, the data presented in this adequately powered, prospective, controlled study establish that the MTHFR C677T polymorphism does not influence Doppler flow measurements.

Ex Output:
no


Ex Input:
Question: Does weekend compared with weekday presentation affect outcomes of patients presenting with non-ST elevation acute coronary syndrome?
Answer: In a large unselected population of NSTEACS patients, weekend admission was associated with modest delays (4.8 h) in time to catheterization, but not with increased 30-day or 1-year mortality.

Ex Output:

no