13111
In addition , compounds 3 and 6 were investigated for their effects on lipopolysaccharide - stimulated macrophages for the production of pro - inflammatory cytokines such as tumour necrosis factor - alpha and interleukin - 6 .
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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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