4944
These studies identify EGR1 as an intermediary linking BCR -derived signals to the induction of CD44 .
 protein: CD44; protein: BCR; protein: EGR1
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: CD44, BCR, EGR1 
Answer:
 protein: CD44; protein: BCR; protein: EGR1