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Thus , CYP2E1 - mediated ethanol hepatotoxicity was alleviated by quercetin through HO - 1 induction .
 Chemical: ethanol; Chemical: quercetin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ethanol; Chemical: quercetin