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: Is diffuse musculoskeletal pain associated with low vitamin D levels or improved by treatment with vitamin D?
Answer: Low vitamin D levels are not associated with diffuse musculoskeletal pain, and treatment with vitamin D does not reduce pain in patients with diffuse pain who have low vitamin D levels.
[EX A]: no

[EX Q]: Question: Are cognitive-behavioral phenotypes of Williams syndrome associated with genetic variation in the GTF2I gene , in a healthy population?
Answer: These findings implicate the GTF2I gene in the neurogenetic basis of social communication and social anxiety, both in Williams syndrome and among individuals in healthy populations.
[EX A]: yes

[EX Q]: Question: Does a diabetes scorecard improve HbA ( 1c ) , blood pressure , lipids , aspirin usage , exercise and diabetes knowledge over 9 months : a randomized controlled trial?
Answer: A diabetes scorecard did not improve glycaemic control, blood pressure control, LDL cholesterol, aspirin usage, exercise or diabetic knowledge in an urban population with uncontrolled Type 2 diabetes.
[EX A]:
no