13916
Thus , both GSH and GSSG levels were significantly decreased by up to 40 % .
 Chemical: GSH; Chemical: GSSG
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: GSH, GSSG 
Answer:
 Chemical: GSH; Chemical: GSSG