1204
Our results suggest that PSM , obtained from A . corniculatus , Bieb . showed in vivo hepatoprotective and antioxidant activities against CCl4 and PC - induced liver damage comparable to that of silymarin .
 Chemical: CCl4; Chemical: silymarin
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: CCl4, silymarin 
Answer:
 Chemical: CCl4; Chemical: silymarin