4040
The extent to which peptides containing chemically and post-translationally modified amino acid side chains are recognized by primed CTL has not been clearly defined.
 cell line: primed CTL; protein: amino acid side chains
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: primed CTL, amino acid side chains 
Answer:
 cell line: primed CTL; protein: amino acid side chains