12691
Conserved elements containing NF-E2 and tandem GATA binding sites are required for erythroid-specific chromatin structure reorganization within the human beta-globin locus control region .
 DNA: human beta-globin locus control region; DNA: erythroid-specific chromatin structure; DNA: Conserved elements
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 beta-globin locus control region, erythroid-specific chromatin structure, Conserved elements 
Answer:
 DNA: human beta-globin locus control region; DNA: erythroid-specific chromatin structure; DNA: Conserved elements