7504
Erythroid gene expression is differentially regulated by erythropoietin , haemin and delta-aminolaevulinic acid in UT-7 cells .
 protein: erythropoietin; cell line: UT-7 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: erythropoietin, UT-7 cells 
Answer:
 protein: erythropoietin; cell line: UT-7 cells