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The Tat protein of human immunodeficiency virus type 1 ( HIV-1 ) is a potent activator of long terminal repeat -directed transcription .
 protein: Tat protein; DNA: long terminal repeat
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: Tat protein, long terminal repeat 
Answer:
 protein: Tat protein; DNA: long terminal repeat