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.

Input: Consider Input: 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.

Output: yes


Input: Consider Input: Question: Does metoclopramide influence the frequency of propofol-induced spontaneous movements?
Answer: Metoclopramide does not affect the frequency of propofol-induced movements, but propofol and fentanyl doses influence the frequency of movements during propofol induction.

Output: no


Input: Consider Input: Question: Are hyperglycemia , hypoglycemia , and glycemic complexity associated with worse outcomes after surgery?
Answer: We found that hypoglycemia (glucose<71 mg/dL) and hyperglycemia (glucose>140 mg/dL) were associated with increased risk of complications, whereas greater complexity of the glucose time series was associated with mortality.


Output: yes