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Several DNA clones were obtained by this procedure, one of which, clone 18 , is reported and characterized here.
 DNA: DNA clones; DNA: clone 18
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: DNA clones, clone 18 
Answer:
 DNA: DNA clones; DNA: clone 18