6707
The differences in protein and amino acid composition were not significant , and there were no clear effects of diets on protein oxidation , but data indicated that compounds present in the marine ingredients might have had an effect on protein oxidation .
 Chemical: amino acid
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: amino acid 
Answer:
 Chemical: amino acid