14968
Cloning and functional characterization of early B-cell factor , a regulator of lymphocyte-specific gene expression .
 protein: early B-cell factor
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: early B-cell factor 
Answer:
 protein: early B-cell factor