11504
The negative regulatory element ( NRE ) of the hepatitis B virus ( HBV ) core promoter contains three subregions which act synergistically to suppress core promoter activity .
 DNA: negative regulatory element; DNA: hepatitis B virus ( HBV ) core promoter; DNA: NRE
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: negative regulatory element, hepatitis B virus ( HBV ) core promoter, NRE 
Answer:
 DNA: negative regulatory element; DNA: hepatitis B virus ( HBV ) core promoter; DNA: NRE