7863
On first encounter with antigen, naive CD4+ T helper (Th) cells differentiate into cytokine -producing effector cells .
 cell type: naive CD4+ T helper (Th) cells; protein: cytokine; cell line: cytokine -producing effector cells
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: naive CD4+ T helper (Th) cells, cytokine, cytokine -producing effector cells 
Answer:
 cell type: naive CD4+ T helper (Th) cells; protein: cytokine; cell line: cytokine -producing effector cells