Detailed Instructions: 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.
Q: Question: Does aminoguanidine inhibit ventricular fibrosis and remodeling process in isoproterenol-induced hypertrophied rat hearts by suppressing ROS and MMPs?
Answer: Anti-fibrotic and anti-hypertrophic activities of AG were mainly attributed to its ROS quenching efficacy and its direct interaction with MMP-2 and MMP-9.
A:
yes