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In the present study we demonstrate that mitogen activation of human peripheral T lymphocytes induces nuclear factors that form complexes with cyclic AMP response element-binding protein ( CREB ).
 cell type: T lymphocytes; cell type: human peripheral T lymphocytes; protein: CREB; protein: mitogen; protein: cyclic AMP response element-binding protein
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: T lymphocytes, human peripheral T lymphocytes, CREB, mitogen, cyclic AMP response element-binding protein 
Answer:
 cell type: T lymphocytes; cell type: human peripheral T lymphocytes; protein: CREB; protein: mitogen; protein: cyclic AMP response element-binding protein