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The results obtained suggest that the presence of the allyl group is fundamental for the antimicrobial activity of these sulfide derivatives when they are present in Allium or in other species ( DADS inhibition zone on S . aureus 15 . 9 mm , P . aeruginosa 21 . 9 mm , E . coli 11 . 4 mm ) .
 Chemical: allyl; Chemical: sulfide; Chemical: DADS
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: allyl; Chemical: sulfide; Chemical: DADS