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We previously reported the discovery of the activity of chloronitrobenzamides ( CNBs ) against bloodstream forms of Trypanosoma brucei .
 Chemical: chloronitrobenzamides; Chemical: CNBs
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: chloronitrobenzamides; Chemical: CNBs