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Activities of the antioxidant enzymes of erythrocytes such as superoxide dismutase , catalase , glutathione S - transferase and glutathione peroxidase increased significantly in a dose - dependent manner with significant elevation in hydrogen peroxide and malondialdehyde levels , whereas glutathione level was not significantly decreased in BLCO - treated animals .
 Chemical: superoxide; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: hydrogen peroxide; Chemical: malondialdehyde; Chemical: glutathione
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: superoxide, glutathione, S, glutathione, hydrogen peroxide, malondialdehyde, glutathione 
Answer:
 Chemical: superoxide; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: hydrogen peroxide; Chemical: malondialdehyde; Chemical: glutathione