1420
A number of the ETS family of transcription factors are expressed in T cells , including ETS1 and ELF1 .
 protein: ETS family; protein: ETS1; protein: ELF1; cell type: T cells; protein: transcription factors
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: ETS family; protein: ETS1; protein: ELF1; cell type: T cells; protein: transcription factors