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.

[Q]: 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.
[A]: no


[Q]: Question: Does dNA Methylation of MMP9 be Associated with High Levels of MMP-9 Messenger RNA in Periapical Inflammatory Lesions?
Answer: The present study suggests that the unmethylated status of the MMP9 gene in periapical lesions may explain the observed up-regulation of messenger RNA transcription in these lesions.
[A]: yes


[Q]: Question: Is factor V Leiden commonly associated with idiopathic portal vein thrombosis in southern India?
Answer: Factor V Leiden contributes little, if at all, to the development of portal vein thrombosis in southern India.
[A]:
no