241
Furthermore, a positive regulatory element was found 45 bp downstream of the NRE .
 DNA: NRE; DNA: positive regulatory element; DNA: 45 bp downstream
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: NRE; DNA: positive regulatory element; DNA: 45 bp downstream