13155
Two mutants displayed differential activity between the two promoters , activating transcription with the W-X-Y but not the X-Y elements .
 DNA: promoters
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: promoters 
Answer:
 DNA: promoters