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: Are flexible magnets effective in decreasing pain perception and recovery time after muscle microinjury?
Answer: No significant therapeutic effects on pain control and muscular dysfunction were observed in subjects wearing flexible magnets.
[A]: no


[Q]: Question: Does greater body mass independently predict less radiographic progression on X-ray and MRI over 1-2 years?
Answer: Greater BMI is associated with a lower risk of progression on X-ray and MRI over 2 years. Subjects with greater BMI also demonstrate less bone oedema at baseline. Greater BMI may indicate a less aggressive RA phenotype and aid in risk stratification.
[A]: yes


[Q]: Question: Do hB-EGF-induced VEGF production and eNOS activation depend on both PI3 kinase and MAP kinase in HaCaT cells?
Answer: These results demonstrate that HB-EGF-induced eNOS activation depends on p42/p44 MAPK, PI3K/Akt pathways and endogenous VEGF in HaCaT cells.
[A]:
yes