6879
Furthermore, Id3 impedes expression of recombination activating genes and downregulates pre-Talpha mRNA .
 RNA: pre-Talpha mRNA; protein: Id3
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: pre-Talpha mRNA, Id3 
Answer:
 RNA: pre-Talpha mRNA; protein: Id3