4872
Taken as a whole , these results suggest that ACh release by A549 cells enhances TNF - alpha - induced CXCL8 secretion through activation of the M3R .
 Chemical: ACh
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: ACh