8020
Dephosphorylation of 4E-BP1 was also observed when U-937 cells were induced to differentiate into monocytes /macrophages following treatment with retinoic acid or DMSO .
 cell type: monocytes /macrophages; protein: 4E-BP1; cell type: monocytes; cell line: U-937 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: monocytes /macrophages, 4E-BP1, monocytes, U-937 cells 
Answer:
 cell type: monocytes /macrophages; protein: 4E-BP1; cell type: monocytes; cell line: U-937 cells