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ActVA - ORF5 , a flavin - dependent monooxygenase ( FMO ) essential for ACT biosynthesis , forms a two - component enzyme system in combination with a flavin : NADH oxidoreductase , ActVB .
 Chemical: flavin; Chemical: ACT; Chemical: flavin; Chemical: NADH
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: flavin; Chemical: ACT; Chemical: flavin; Chemical: NADH