instruction:
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.
question:
Question: Is routine preoperative lymphoscintigraphy necessary prior to sentinel node biopsy for breast cancer?
Answer: Preoperative lymphoscintigraphy adds little additional information to intraoperative lymphatic mapping, and its routine use is not justified.
answer:
no


question:
Question: Are respiratory disorders more common in farmers . Results from a study on Icelandic animal farmers?
Answer: The prevalence of respiratory disorders and symptoms among Icelandic farmers is currently similar to non-farmers. This may suggest that modernization of the agricultural environment has had a positive effect on workers' health.
answer:
no


question:
Question: Does leucocyte-depleting arterial line filtration reduce myocardial injury assessed by Troponin T during routine coronary artery bypass grafting using crossclamp fibrillation?
Answer: LD arterial line filters did not confer any cardioprotective effect as measured by Troponin T in elective coronary revascularization cases.
answer:

no