10305
Certain subpopulations of lymphocytes synthesize and secrete biologically active prolactin , which suggests that prolactin can act as an autocrine and/or paracrine factor to modulate the activities of cells of the immune system .
 cell type: 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: lymphocytes 
Answer:
 cell type: lymphocytes