9738
Induction of Fas ligand expression by HIV involves the interaction of Nef with the T cell receptor zeta chain .
 GENE: Fas ligand; GENE: Nef; GENE: T cell receptor zeta chain
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Fas ligand, Nef, T cell receptor zeta chain 
Answer:
 GENE: Fas ligand; GENE: Nef; GENE: T cell receptor zeta chain