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 school-based physical activity compromise children 's academic performance?
Answer: The AS! BC model is an attractive and feasible intervention to increase physical activity for students while maintaining levels of academic performance.
[EX A]: no

[EX Q]: 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 A]: no

[EX Q]: Question: Does reduced sun exposure explain the inverse association of 25-hydroxyvitamin D with percent body fat in older adults?
Answer: In older adults, sun exposure habits do not vary according to adiposity and do not appear to explain lower 25(OH)D concentrations with increasing adiposity.
[EX A]:
no