17329
Chemical evidence for the synergistic effect of a cysteinyl thiol on the antioxidant activity of caffeic and dihydrocaffeic esters .
 Chemical: cysteinyl thiol; Chemical: caffeic and dihydrocaffeic esters
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: cysteinyl thiol, caffeic and dihydrocaffeic esters 
Answer:
 Chemical: cysteinyl thiol; Chemical: caffeic and dihydrocaffeic esters