4352
Pb did not activate NF-kappa B in 4 different T cell lines , suggesting that lymphoid cell lines may not be reliable surrogates for the study of transcriptional activation in human T cells .
 cell line: T cell lines; protein: NF-kappa B; cell type: human T 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: T cell lines, NF-kappa B, human T cells 
Answer:
 cell line: T cell lines; protein: NF-kappa B; cell type: human T cells