1419
Thus, stimulation of monocyte cell lines by phorbol esters or TNF alpha induces cell differentiation and activates HIV transcription .
 cell line: monocyte cell lines; protein: TNF alpha
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: monocyte cell lines; protein: TNF alpha