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.

[Q]: Question: Is a high body mass index in esophageal cancer patients associated with adverse outcomes following esophagectomy?
Answer: A high BMI is not associated with increased overall morbidity following esophagectomy; moreover, it is associated with decreased incidence of chylothorax. The better overall survival in patients with high BMI compared with those with low BMI might be due to a relatively low pathological stage. A high BMI should therefore not be a relative contraindication for esophagectomy.
[A]: no


[Q]: Question: Does information-enhancement and goal setting techniques for increasing adaptive motivation and decreasing urge to drink alcohol?
Answer: The results show that sense of control can be experimentally induced. This finding has important clinical implications.
[A]: yes


[Q]: Question: Are subnormal levels of vitamin D associated with acute wheeze in young children?
Answer: Our findings support the hypothesis that subnormal levels of vitamin D are associated with acute wheeze in young children.
[A]:
yes