9221
Monotropein was found to inhibit the expressions of inducible nitric oxide synthase ( iNOS ) , cyclooxygenase - 2 ( COX - 2 ) , tumor necrosis factor - alpha ( TNF - alpha ) , and interleukin - 1 beta ( IL - 1 beta ) mRNA in LPS - induced RAW 264 . 7 macrophages .
 Chemical: Monotropein; Chemical: nitric oxide
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: Monotropein; Chemical: nitric oxide