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: Do aging and alcohol interact to alter hepatic DNA hydroxymethylation?
Answer: The observation that alcohol alters DNA hydroxymethylation indicates a new epigenetic effect of alcohol. This is the first study demonstrating the interactive effects of chronic alcohol consumption and aging on DNA hydroxymethylation.
yes