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 pEEP ventilation cause humorally mediated cardiac output depression in pigs?
Answer: As humorally mediated negative inotropism during PEEP ventilation has earlier been demonstrated in dogs, the results suggest that this mechanism might be species-dependent.
Example Output: no

Example 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.
Example Output: yes

Example Input: Question: Does benchmarking trauma centers on mortality alone reflect quality of care : implications for pay-for-performance?
Answer: Mortality-based external benchmarking does not identify centers with high complication rates. This creates a dichotomy between current trauma center profiling standards and measures used for pay-for-performance. A benchmarking mechanism that reflects all measures of quality is needed.
Example Output:
no