9859
For this project , quercetin , catechin , ascorbic acid , caffeic acid , chlorogenic acid and acetylcysteine were screened as antioxidant standards with DPPH ( . ) assay to define the EC ( 50 ) parameters .
 Chemical: quercetin; Chemical: catechin; Chemical: ascorbic acid; Chemical: caffeic acid; Chemical: chlorogenic acid; Chemical: acetylcysteine; Chemical: DPPH ( . )
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: quercetin, catechin, ascorbic acid, caffeic acid, chlorogenic acid, acetylcysteine, DPPH ( . ) 
Answer:
 Chemical: quercetin; Chemical: catechin; Chemical: ascorbic acid; Chemical: caffeic acid; Chemical: chlorogenic acid; Chemical: acetylcysteine; Chemical: DPPH ( . )