9768
The biosensors also revealed that E . coli cells engulfed by macrophages exhibit lower c - di - GMP levels , most likely as a response to the enormous pressures of survival during phagocytosis .
 Chemical: c - di - GMP
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: c - di - GMP