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Okadaic acid is a potent inducer of AP-1 , NF-kappa B , and tumor necrosis factor-alpha in human B lymphocytes .
 cell type: human B lymphocytes; protein: tumor necrosis factor-alpha; protein: AP-1; 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:
 cell type: human B lymphocytes; protein: tumor necrosis factor-alpha; protein: AP-1; protein: NF-kappa B