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Analysis of the nuclear extracts with anti-STAT Abs indicated that they contained STAT-3 and additional proteins crossreactive with the STAT family .
 protein: anti-STAT Abs; protein: STAT-3; protein: STAT 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: anti-STAT Abs; protein: STAT-3; protein: STAT family