1817
5 ' - Deletion of the Stat - binding sites abolished all promoter - reporter activity in response to PRL .
 GENE: Stat - binding sites; 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: Stat - binding sites; GENE: PRL