10450
The combination of the immune costimulatory molecule B7.1 and IL-12 has been shown to be synergistic for T cell activation .
 protein: B7.1; protein: IL-12; protein: immune costimulatory molecule
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: B7.1, IL-12, immune costimulatory molecule 
Answer:
 protein: B7.1; protein: IL-12; protein: immune costimulatory molecule