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To understand the role of NF-kappa B complexes in T cell development and activation , we have generated transgenic mice in which RelA and c-Rel complexes were selectively inhibited in the T-lineage cells by specific expression of a trans-dominant form of I kappa B alpha .
 protein: I kappa B alpha; protein: NF-kappa B; protein: c-Rel complexes; protein: RelA; cell type: T-lineage cells
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: I kappa B alpha, NF-kappa B, c-Rel complexes, RelA, T-lineage cells 
Answer:
 protein: I kappa B alpha; protein: NF-kappa B; protein: c-Rel complexes; protein: RelA; cell type: T-lineage cells