21909
Analysis from chemical composition showed that titratable acidity and content of l - malic acid exhibited evident differences among the samples after MLF .
 Chemical: l - malic 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: l - malic acid 
Answer:
 Chemical: l - malic acid