9257
In this study , the mechanisms of TRG prevention of oxidative stress were determined by measuring erythrocyte and liver antioxidant enzyme activities , and expressions of genes associated with reactive oxygen species production , and carbohydrate and lipid metabolisms by DNA microarray .
 Chemical: TRG; Chemical: oxygen; Chemical: carbohydrate
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: TRG, oxygen, carbohydrate 
Answer:
 Chemical: TRG; Chemical: oxygen; Chemical: carbohydrate