1149
Activities of superoxide dismutase ( SOD ) , peroxidase ( POX ) and catalase ( CAT ) were determined in fresh leaves obtained from 15 - day seedlings .
 Chemical: superoxide
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: superoxide