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 developmental changes in spatial distribution of in vivo fluorescence and epidermal UV absorbance over Quercus petraea leave?
Answer: The spatial pattern of epidermal UV-screen over the area of oak leaves is related to leaf anatomy during development. In vivo spectroscopy and fluorescence imaging of the leaf surface showed the distribution of pigments within the leaf and hence can provide a tool to monitor optically the leaf development in nature.
[EX A]: yes

[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: Is enthesis erosion in spondyloarthritis a persistent structural lesion?
Answer: US examination of Achilles erosions is reliable and sensitive to change. An association was found between Achilles erosions and objective activity-based measurements of SpA outcomes.
[EX A]:
no