16341
BZA / TNF - alpha - mediated IL - 6 induction in MCF - 7 cells was counteracted by silencing aryl hydrocarbon receptor ( AhR ) , known to mediates most of PAH effects .
 Chemical: BZA; Chemical: aryl hydrocarbon; Chemical: PAH
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: BZA; Chemical: aryl hydrocarbon; Chemical: PAH