4385
These results demonstrate a specific association of SIV and HIV - 2 nef , but not HIV - 1 nef , with TCRzeta .
 GENE: HIV - 2 nef; GENE: HIV - 1 nef; GENE: TCRzeta
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: HIV - 2 nef; GENE: HIV - 1 nef; GENE: TCRzeta