10036
These reagents can be broadly grouped into four categories : ( 1 ) competitive inhibitors of the accessory gene regulator ( agr ) quorum sensing system , ( 2 ) inhibitors of AgrA - DNA interactions , ( 3 ) RNAIII transcription inhibitors , and ( 4 ) inhibitors of the SarA family of transcriptional regulators .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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