9015
Part of this process involves the prevention of the development of Th1 cells , which are a primary source of interferon gamma ( IFNgamma ), a potent activator of monocytes and an inhibitor of Th2 proliferation .
 protein: interferon gamma; cell type: Th1 cells; protein: IFNgamma; cell type: monocytes
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: interferon gamma, Th1 cells, IFNgamma, monocytes 
Answer:
 protein: interferon gamma; cell type: Th1 cells; protein: IFNgamma; cell type: monocytes