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Structurally, the LCR is defined by the presence of four domains of erythroid-specific chromatin structure .
 DNA: erythroid-specific chromatin structure; DNA: LCR
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: erythroid-specific chromatin structure, LCR 
Answer:
 DNA: erythroid-specific chromatin structure; DNA: LCR