7483
Their retinoidal activity were examined in terms of the differentiation-inducing ability toward human promyelocytic leukemia HL-60 cells .
 cell line: human promyelocytic leukemia HL-60 cells
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 promyelocytic leukemia HL-60 cells 
Answer:
 cell line: human promyelocytic leukemia HL-60 cells