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: Do brain neuroplastic changes accompany anxiety and memory deficits in a model of complex regional pain syndrome?
Answer: The study findings provide novel observations regarding behavioral changes and brain plasticity in a mouse model of CRPS. In addition to elucidating some of the supraspinal correlates of the syndrome, this work supports the potential use of therapeutic interventions that not only directly target sensory input and other peripheral mechanisms, but also attempt to ameliorate the broader pain experience by modifying its associated cognitive and emotional comorbidities.
[EX A]: yes

[EX Q]: Question: Are arterial stiffness and pulse wave reflection increased in patients suffering from severe periodontitis?
Answer: The results of this study confirm the association between periodontal inflammation and increased cardiovascular risk shown by impaired vascular health in case of severe periodontitis. As impaired vascular health is a common finding in patients suffering from severe periodontal disease a concomitant routine cardiovascular evaluation may be advised.
[EX A]: yes

[EX Q]: Question: Are e-cadherin promoter polymorphisms associated with the aggressiveness of prostate cancer in Caucasian patients?
Answer: We conclude that E-cadherin -160C-->A and/or -347G-->GA polymorphisms are not associated with the aggressiveness of prostate cancer in Caucasian patients.
[EX A]:
no