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We have examined the effect of Rb expression on the activation of the promoter for HLA-DRA , the prototype class II gene .
 DNA: prototype class II gene; protein: Rb; DNA: HLA-DRA
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: prototype class II gene, Rb, HLA-DRA 
Answer:
 DNA: prototype class II gene; protein: Rb; DNA: HLA-DRA