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: Are complaints of sleep disturbances associated with cardiovascular disease : results from the Gutenberg Health Study?
Answer: Given the high prevalence of complaints of sleep disturbances and their strong impact on health status, increased efforts should be undertaken for their identification and treatment.
Example Output: yes

Example Input: Question: Does transparent and open discussion of errors increase malpractice risk in trauma patients?
Answer: A transparent discussion of errors, complications, and deaths does not appear to lead to an increased risk of lawsuit.
Example Output: no

Example Input: Question: Does oral clonidine premedication prolong analgesia after herniorrhaphy under subarachnoid anesthesia?
Answer: In healthy patients, premedication with oral clonidine provided useful sedation and anxiolysis and stable hemodynamics, without prolongation of sensory and motor block. Side effects occurred only with clonidine 5 mcg/kg. Thus, a dose of 2.5 mcg/kg is recommended.
Example Output:
no