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We have purified the RFX complex and sequenced its three subunits.
 protein: RFX complex; protein: RFX
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: RFX complex, RFX 
Answer:
 protein: RFX complex; protein: RFX