13007
Investigations of dipeptide structures containing pyrrolysine as N - terminal residues : a DFT study in gas and aqueous phase .
 Chemical: dipeptide; Chemical: pyrrolysine; Chemical: N
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: dipeptide, pyrrolysine, N 
Answer:
 Chemical: dipeptide; Chemical: pyrrolysine; Chemical: N