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 dorsal plication without degloving safe and effective for correcting ventral penile deformities?
Answer: Penile plication is a safe and effective technique for correcting all directions of curvature. Dorsal plication without degloving produces favorable objective and subjective results comparable to ventral and lateral plication.
[EX A]: yes

[EX Q]: Question: Do pre-admission clinical factors affect length of stay in the epilepsy monitoring unit?
Answer: Pre-admission clinical variables may predict EMU LOS. These factors could be used at the administrative level for maximum EMU resource utilization.
[EX A]: yes

[EX Q]: Question: Does progesterone influence vascular function in postmenopausal women?
Answer: We conclude that progesterone given without oestrogen does not adversely affect vascular function in postmenopausal women.
[EX A]:
no