3704
The NB4 cell line , which is derived from the bone marrow of a patient with APL during relapse, can be used as a model system to study the growth and differentiation of APL cells .
 cell line: APL cells; cell line: NB4 cell line
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: APL cells, NB4 cell line 
Answer:
 cell line: APL cells; cell line: NB4 cell line