23794
The results revealed that CCl4 - induced oxidative stress as evidenced by the significant depletion of antioxidant enzymes , namely , superoxide dismutase , catalase , peroxidase , glutathione - S - transferase , glutathione peroxidase , glutathione reductase , and glutathione contents , while increased lipid peroxidation ( thiobarbituric acid - reactive substances contents ) .
 Chemical: CCl4; Chemical: superoxide; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: glutathione; Chemical: glutathione; Chemical: thiobarbituric acid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: CCl4; Chemical: superoxide; Chemical: glutathione; Chemical: S; Chemical: glutathione; Chemical: glutathione; Chemical: glutathione; Chemical: thiobarbituric acid