1028
Lipid peroxidation and total sulfhydryl groups were altered upon CP treatment , indicating the generation of oxidative stress .
 Chemical: sulfhydryl
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: sulfhydryl 
Answer:
 Chemical: sulfhydryl