18217
Biotransformation of ursolic acid by Syncephalastrum racemosum CGMCC 3 . 2500 and anti - HCV activity .
 Chemical: ursolic acid
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: ursolic acid 
Answer:
 Chemical: ursolic acid