8684
Our results show that Tax has at least two distinct activities on T cells , and suggest that Tax plays a crucial role in IL-2 -independent T-cell transformation induced by HTLV-1 , in addition to its well-known IL-2 -dependent cell transformation .
 cell type: T cells; protein: IL-2; protein: Tax; protein: Tax; 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, IL-2, Tax, Tax, IL-2 
Answer:
 cell type: T cells; protein: IL-2; protein: Tax; protein: Tax; protein: IL-2