6687
Human T-cell leukemia virus type 1 Tax protein induces the expression of STAT1 and STAT5 genes in T-cells .
 protein: Human T-cell leukemia virus type 1 Tax protein; cell type: 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: Human T-cell leukemia virus type 1 Tax protein, T-cells 
Answer:
 protein: Human T-cell leukemia virus type 1 Tax protein; cell type: T-cells