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 Input:
Question: Do natural triterpenic diols promote apoptosis in astrocytoma cells through ROS-mediated mitochondrial depolarization and JNK activation?
Answer: Overall, we provide a significant insight into the anticarcinogenic action of erythrodiol and uvaol that may have a potential in prevention and treatment of brain tumors and other cancers.

Ex Output:
yes

Ex Input:
Question: Is weight-adjusted resting energy expenditure constant in critically ill patients?
Answer: Predictive equations were not able to estimate measured REE adequately in all the patients. Adjusted REE decreased with increasing body mass index; thus, a body mass index group-specific adaptation for the estimation of energy needs should be applied.

Ex Output:
no

Ex Input:
Question: Does emergency ambulance transport induce stress in patients with acute coronary syndrome?
Answer: Emergency ambulance transportation induces a rise in plasma catecholamine levels and therefore stress in patients with acute coronary syndrome, but does not result in cardiac shock as lactate levels and haemodynamic parameters remain normal.

Ex Output:
yes