4044
Similarly, CTL raised against the parent peptide did not recognize the succinimide derivative of this peptide .
 cell type: CTL
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: CTL 
Answer:
 cell type: CTL