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: Does vasopressin raise cardiac enzymes following cardiac surgery : a randomized double-blind clinical trial?
Answer: Vasopressin infusion has been used to treat catecholamine-unresponsive shock. In this study, intraoperative vasopressin was used safely as a possible first-line drug for treating hypotension; however, it did not increase the levels of cardiac enzymes after cardiac surgery.
[EX A]: no

[EX Q]: Question: Do increased homocysteine levels exist in women with preeclampsia from early pregnancy?
Answer: Our results indicate that higher homocysteine levels exist in women with PE from early pregnancy and continue till delivery.
[EX A]: yes

[EX Q]: Question: Does [ Sexual function after radical prostatectomy affect global patient satisfaction ]?
Answer: Although sexual function is markedly altered after RP, it does not affect global patient satisfaction with the treatment received. Urinary function and general quality of life are significantly correlated with global satisfaction.
[EX A]:
no