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: Is postoperative intravenous drip infusion required after minilaparotomy cholecystectomy?
Answer: There is no clinical indication to continue IV drip infusion after full recovery from anaesthesia in patients operated for minilaparotomy cholecystectomy.
Example Output: no

Example Input: Question: Does switching types of drug-eluting stents prevent repeated in-stent restenosis in patients with coronary drug-eluting stent restenosis?
Answer: A strategy involving repeated DES implantation was superior to POBA for preventing recurrent restenosis. Treatment with a different type or generation of DES does not appear to reduce the incidence of TLR. Moreover, we identified certain useful factors for facilitating appropriate and early triage in the patients with repeated DES ISR.
Example Output: no

Example Input: Question: Do pain and disability influence psychological and social factors at work among sick-listed patients with neck and back pain?
Answer: Sick-listed patients with neck and back pain who had concurrent anxiety or depression reported increased psychological and social challenges at work. To provide suitable treatment in the clinical setting, further attention should be paid to the interaction between anxiety or depression and perceived job strain.
Example Output:
no