13969
We demonstrate that, in primary NK cells , IL-13 , but not IL-4 , may induce low levels of IFN-gamma secretion .
 protein: IL-13; protein: IL-4; cell type: primary NK cells; protein: IFN-gamma
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: IL-13, IL-4, primary NK cells, IFN-gamma 
Answer:
 protein: IL-13; protein: IL-4; cell type: primary NK cells; protein: IFN-gamma