15658
These compounds have been reported to possess greater immunosuppressive activity than their reduced methionine sulfoxide peptide forms 4 and 6 , respectively .
 Chemical: methionine sulfoxide
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: methionine sulfoxide