13655
Leucine / isoleucine side chain polymers are of interest due to their hydrophobicity and reported role in the formation of alpha - helical structures .
 Chemical: Leucine; Chemical: isoleucine
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: Leucine, isoleucine 
Answer:
 Chemical: Leucine; Chemical: isoleucine