20937
In addition , the same compounds were tested for antiquorum - sensing activity against Chromobacterium violacium ATCC 12472 , where compounds 3b , c , 3f - h , 6b - d , 9 , 10 and 12 demonstrated acceptable activity .
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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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