3882
First , mutations in the IFNgamma - activated sequence ( GAS ) , either multimerized or in the context of the 1 . 7 - kb IRF - 1 promoter , failed to mediate a PRL response , showing that the IRF - 1 GAS is a target of PRL signaling .
 GENE: IFNgamma - activated sequence; GENE: GAS; GENE: 1 . 7 - kb IRF - 1 promoter; GENE: PRL; GENE: IRF - 1; GENE: GAS; GENE: PRL
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: IFNgamma - activated sequence; GENE: GAS; GENE: 1 . 7 - kb IRF - 1 promoter; GENE: PRL; GENE: IRF - 1; GENE: GAS; GENE: PRL