12975
Intestinal epithelial cells can express HLA class II antigens and may function as antigen-presenting cells to CD4(+) T cells within the intestinal mucosa .
 cell type: antigen-presenting cells to CD4(+) T cells; protein: HLA class II antigens; cell type: Intestinal epithelial 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: antigen-presenting cells to CD4(+) T cells, HLA class II antigens, Intestinal epithelial cells 
Answer:
 cell type: antigen-presenting cells to CD4(+) T cells; protein: HLA class II antigens; cell type: Intestinal epithelial cells