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: Is cardiomyopathy associated with structural remodelling of heart valve extracellular matrix?
Answer: Valves from cardiomyopathic hearts showed significant ECM deterioration with a disrupted collagen and elastic fibre network. It will be important to determine the impact of this ECM damage on valve durability and calcification in vivo if allografts are to be used from these donors.
A:
yes