Given the task definition and input, reply with output. 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: Does perioperative hypothermia ( 33 degrees C ) increase the occurrence of cardiovascular events in patients undergoing cerebral aneurysm surgery : findings from the Intraoperative Hypothermia for Aneurysm Surgery Trial?
Answer: In patients undergoing cerebral aneurysm surgery, perioperative hypothermia was not associated with an increased occurrence of cardiovascular events.
no