4978
However , the molecular mechanism by which EGCG exerts its anti - fibrotic effects has not been well investigated .
 Chemical: EGCG
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: EGCG 
Answer:
 Chemical: EGCG