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In contrast, a mutant of Tax termed M22 , which does not induce NF-kappaB , fails to activate either IKKalpha or IKKbeta .
 protein: NF-kappaB; protein: IKKalpha; protein: IKKbeta; protein: M22; protein: Tax
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: NF-kappaB, IKKalpha, IKKbeta, M22, Tax 
Answer:
 protein: NF-kappaB; protein: IKKalpha; protein: IKKbeta; protein: M22; protein: Tax