2770
Additionally, IFN-gamma activity but not IL-1 , IL-2 , or IL-4 activity was present in culture supernatants 72 h after R24 stimulation .
 protein: IFN-gamma; protein: R24
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: IFN-gamma, R24 
Answer:
 protein: IFN-gamma; protein: R24