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 Q]: Question: Is epidural analgesia superior to local infiltration analgesia in children with cerebral palsy undergoing unilateral hip reconstruction?
Answer: Epidural analgesia is superior to local infiltration analgesia for early postoperative pain management in children with cerebral palsy who undergo unilateral hip reconstruction.
[EX A]: yes

[EX Q]: 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.
[EX A]: no

[EX Q]: Question: Is lymphatic vessel density associated with lymph node metastasis in non-small cell lung carcinoma?
Answer: The results suggest that although lymphangiogenesis occurs in association with non-small cell lung carcinoma, it may not be an important factor in lymph node metastasis. In fact, there is a suggestion that the number of lymphatics that a person inherently has appears to be more important than lymphangiogenesis when it comes to the development of lymph node metastasis.
[EX A]:
no