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 elevated S100B levels correlate with the severity of encephalopathy during sepsis?
Answer: In severe sepsis, an increase in S100B does not allow the physicians to distinguish patients with severe impairment of consciousness from those with milder derangements or to prognosticate neurological recovery.
[EX A]: no

[EX Q]: 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.
[EX A]: no

[EX Q]: Question: Does lung-protective mechanical ventilation protect against acute kidney injury in patients without lung injury at onset of mechanical ventilation?
Answer: In the present study in critically patients without ALI at onset of mechanical ventilation, lower tidal volume ventilation did not reduce the development or worsening of AKI compared with conventional tidal volume ventilation.
[EX A]:
no