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BLR2 -specific mRNA could be detected in all Epstein-Barr virus positive B cell lines .
 cell line: Epstein-Barr virus positive B cell lines; RNA: BLR2 -specific mRNA; protein: BLR2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: Epstein-Barr virus positive B cell lines; RNA: BLR2 -specific mRNA; protein: BLR2