15014
Over its 3' end , it binds a factor that is ubiquitously and constitutively expressed.
 DNA: 3' end
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: 3' end 
Answer:
 DNA: 3' end