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: 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.

Answer: yes


Question: Question: Are anti-cyclic citrullinated peptide antibodies associated with familial Mediterranean fever?
Answer: Our results show that anti-CCP antibodies are not associated with FMF.

Answer: no


Question: Question: Does chronic aerobic exercise improve blood pressure dipping status in African American nondippers?
Answer: This study suggests that the nondipping pattern of ambulatory BP can be improved by chronic AEXT in African American nondippers, regardless of a change in the 24-h average BP. This finding may be clinically important because of the target organ implication of nondipping nocturnal BP.

Answer:
yes