8088
(4) Intrafollicular CD57+ cells were negative for Bcl-6 , indicating heterogeneity of the intrafollicular T-cell population .
 cell type: intrafollicular T-cell population; cell type: Intrafollicular CD57+ cells; protein: Bcl-6
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: intrafollicular T-cell population, Intrafollicular CD57+ cells, Bcl-6 
Answer:
 cell type: intrafollicular T-cell population; cell type: Intrafollicular CD57+ cells; protein: Bcl-6