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 Input:
Question: Do distinct resting-state perfusion patterns underlie psychomotor retardation in unipolar vs. bipolar depression?
Answer: The differences in rCBF and in the localization of the clusters of positive AL/rCBF correlations between BP and UP suggest that different neural impairments may underlie motor symptoms in the two disorders, but finally converge in phenotypically similar manifestations.

Ex Output:
yes


Ex Input:
Question: Do pre-admission clinical factors affect length of stay in the epilepsy monitoring unit?
Answer: Pre-admission clinical variables may predict EMU LOS. These factors could be used at the administrative level for maximum EMU resource utilization.

Ex Output:
yes


Ex Input:
Question: Does mild hypothermia after cardiac arrest in dogs affect postarrest multifocal cerebral hypoperfusion?
Answer: After cardiac arrest, mild resuscitative hypothermia lasting 1 hour does not significantly affect patterns of cerebral blood flow and oxygen uptake. This suggests that different mechanisms may explain its mitigating effect on brain damage.

Ex Output:

no