25660
Microsomal epoxide hydrolase ( mEH , EPHX1 ) is a critical xenobiotic - metabolizing enzyme , catalyzing both detoxification and bioactivation reactions that direct the disposition of chemical epoxides , including the carcinogenic metabolites of several polycyclic aromatic hydrocarbons .
 Chemical: epoxide; Chemical: epoxides; Chemical: polycyclic aromatic hydrocarbons
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: epoxide; Chemical: epoxides; Chemical: polycyclic aromatic hydrocarbons