27897
Bioassay showed that eight flavonoids inhibited complement activation on the classic pathway in vitro , with their IC50 values ranging from 0 . 88 to 4 . 02 mM , which may contribute to the applications of the herb in treatment of acute respiratory distress syndrome , etc .
 Chemical: flavonoids
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: flavonoids