6489
Redox parameters ( reactive oxygen production , antioxidant capacity against peroxyl radicals , glutathione - S - transferase ( GST ) activity , and glutathione ( GSH ) concentration ) did not show clear responses , but membrane damage as lipid peroxidation ( LPO ) was observed in both copper exposures .
 Chemical: oxygen; Chemical: peroxyl; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: GSH; Chemical: copper
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: oxygen, peroxyl, glutathione, S, glutathione, GSH, copper 
Answer:
 Chemical: oxygen; Chemical: peroxyl; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: GSH; Chemical: copper