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The GM2 sequence ( GGTAGTTCCC ) is recognized by an inducible factor NF-GM2 ; the other ( CCGCCC ) by constitutive factors A1 , A2 , and B .
 protein: A2; protein: B; protein: A1; DNA: GM2 sequence; protein: constitutive factors; protein: inducible factor NF-GM2
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: A2; protein: B; protein: A1; DNA: GM2 sequence; protein: constitutive factors; protein: inducible factor NF-GM2