5238
The ability of T cells to form high intracellular levels of cAMP is acquired during development in the human thymus and is retained by the majority of mature peripheral T lymphocytes .
 cell type: T cells; cell type: peripheral T lymphocytes
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 cells, peripheral T lymphocytes 
Answer:
 cell type: T cells; cell type: peripheral T lymphocytes