22430
We found that the IC50 of artemisinin in the tea and nonpolar extracts was not significantly different to the IC50 of pure artemisinin .
 Chemical: artemisinin; Chemical: artemisinin
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: artemisinin, artemisinin 
Answer:
 Chemical: artemisinin; Chemical: artemisinin