2936
Overexpression of Bcl-2 in tumor cells blocks apoptosis induced by many stimuli, but inhibition of Fas -mediated killing has not been consistently observed.
 protein: Fas; protein: Bcl-2; cell type: tumor 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: Fas, Bcl-2, tumor cells 
Answer:
 protein: Fas; protein: Bcl-2; cell type: tumor cells