20769
Antioxidant activities were evaluated in different extracts by using spectrophotometric assays : 2 , 2 ' - azino - bis - ( 3 - ethylbenzthiazoline - 6 - sulfonic acid and N , N - dimethyl - p - phenylenediamine dihydrochloride cation radical inhibition for lipophilic and hydrophilic extracts , respectively , and 2 , 2 - diphenyl - 1 - picrylhydrazyl radical scavenging assay for polyphenolic extracts .
 Chemical: 2 , 2 ' - azino - bis - ( 3 - ethylbenzthiazoline - 6 - sulfonic acid; Chemical: N , N - dimethyl - p - phenylenediamine dihydrochloride; Chemical: 2 , 2 - diphenyl - 1 - picrylhydrazyl; Chemical: polyphenolic
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: 2 , 2 ' - azino - bis - ( 3 - ethylbenzthiazoline - 6 - sulfonic acid, N , N - dimethyl - p - phenylenediamine dihydrochloride, 2 , 2 - diphenyl - 1 - picrylhydrazyl, polyphenolic 
Answer:
 Chemical: 2 , 2 ' - azino - bis - ( 3 - ethylbenzthiazoline - 6 - sulfonic acid; Chemical: N , N - dimethyl - p - phenylenediamine dihydrochloride; Chemical: 2 , 2 - diphenyl - 1 - picrylhydrazyl; Chemical: polyphenolic