2600
No evidence for the expression of the progesterone receptor on peripheral blood lymphocytes during pregnancy [see comments]
 cell type: peripheral blood lymphocytes; protein: progesterone receptor
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: peripheral blood lymphocytes, progesterone receptor 
Answer:
 cell type: peripheral blood lymphocytes; protein: progesterone receptor