4758
Stimulation of U1 cells by LPS alone induced minimal levels of HIV expression , which was significantly enhanced by granulocyte-macrophage colony-stimulating factor ( GM-CSF ).
 cell line: U1 cells; protein: GM-CSF; protein: granulocyte-macrophage colony-stimulating factor
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: U1 cells, GM-CSF, granulocyte-macrophage colony-stimulating factor 
Answer:
 cell line: U1 cells; protein: GM-CSF; protein: granulocyte-macrophage colony-stimulating factor