5368
Injection of SEA to adult mice activates CD4+ T cells expressing certain T-cell receptor (TCR) variable region beta-chain families and induces strong and rapid production of interleukin 2 ( IL-2 ).
 cell type: T cells; protein: SEA; protein: T-cell receptor (TCR) variable region beta-chain families; cell type: CD4+ T cells; protein: IL-2
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 cells, SEA, T-cell receptor (TCR) variable region beta-chain families, CD4+ T cells, IL-2 
Answer:
 cell type: T cells; protein: SEA; protein: T-cell receptor (TCR) variable region beta-chain families; cell type: CD4+ T cells; protein: IL-2