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These findings show that nuclear NF-kappa B is necessary to activate the kappa B enhancer , while KBF1 by itself is not sufficient.
 protein: KBF1; DNA: kappa B enhancer; protein: nuclear NF-kappa B; protein: NF-kappa B
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: KBF1; DNA: kappa B enhancer; protein: nuclear NF-kappa B; protein: NF-kappa B