2939
Expression of Bcl-xL and adenovirus E1B 19K did not interfere with anti- Fas killing .
 protein: Bcl-xL; protein: adenovirus E1B 19K; protein: Fas
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: Bcl-xL, adenovirus E1B 19K, Fas 
Answer:
 protein: Bcl-xL; protein: adenovirus E1B 19K; protein: Fas