6228
Experiments with a blocking antibody to IL-4R alpha showed that this chain remains an essential component of the IL-13 receptor complex on MDMac .
 protein: IL-13; protein: IL-13 receptor complex; cell line: MDMac; protein: IL-4R alpha
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-13 receptor complex, MDMac, IL-4R alpha 
Answer:
 protein: IL-13; protein: IL-13 receptor complex; cell line: MDMac; protein: IL-4R alpha