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.

Example Input: 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.
Example Output: no

Example Input: Question: Are all cues created equal : the case for facilitating the acquisition of typical weighting strategies in children with hearing loss?
Answer: Spectral degradation affects children more than adults, but that degradation cannot explain the greater diminishment in children's weighting of FRT. It is suggested that auditory training could strengthen the weighting of spectral cues for implant recipients.
Example Output: no

Example Input: Question: Do collateral flow and brain changes on computed tomography angiography predict infarct volume on early diffusion-weighted imaging?
Answer: Assessment of ASPECTS and collateral flow on CTA-SI may be able to exclude a patient with large infarct on early DWI.
Example Output:
yes