8738
We have previously demonstrated that interaction of infected thymocytes with autologous thymic epithelial cells ( TEC ) is a prerequisite for a high level of human immunodeficiency virus type 1 (HIV-1) replication in thymocytes (M.Rothe, L.Chene, M.Nugeyre, F.Barre-Sinoussi, and N.Israel, J.Virol.72:5852-5861, 1998).
 cell type: thymocytes; cell type: thymic epithelial cells; cell type: thymocytes; cell type: TEC
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: thymocytes, thymic epithelial cells, thymocytes, TEC 
Answer:
 cell type: thymocytes; cell type: thymic epithelial cells; cell type: thymocytes; cell type: TEC