14733
Ionizing radiation triggers a signal in human B-lymphocyte precursors that is intimately linked to an active protein-tyrosine kinase regulatory pathway .
 cell type: human B-lymphocyte precursors; protein: protein-tyrosine kinase
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: human B-lymphocyte precursors, protein-tyrosine kinase 
Answer:
 cell type: human B-lymphocyte precursors; protein: protein-tyrosine kinase