14357
Expression of the Tat protein of HIV1 in human promonocytic U937 cells .
 cell line: U937 cells; cell line: human promonocytic U937 cells; protein: Tat protein
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: U937 cells, human promonocytic U937 cells, Tat protein 
Answer:
 cell line: U937 cells; cell line: human promonocytic U937 cells; protein: Tat protein