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Two well-characterized Ets family members , Ets-1 and Ets-2 , are reciprocally expressed during T-cell activation .
 protein: Ets-1; protein: Ets-2; protein: Ets family members; protein: Ets family
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-1; protein: Ets-2; protein: Ets family members; protein: Ets family