23796
Coadministration revealed that S . asper extract can protect the kidney against CCl4 - mediated oxidative damage by restoring the activity of antioxidant enzyme , due to the presence of plant bioactive constituents .
 Chemical: CCl4
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