9196
We propose that two pathways regulate Stat5 serine phosphorylation , one that is prolactin - activated and PD98059 - resistant and one that is constitutively active and PD98059 - sensitive and preferentially targets Stat5a .
 GENE: Stat5; GENE: prolactin; GENE: Stat5a
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: Stat5, prolactin, Stat5a 
Answer:
 GENE: Stat5; GENE: prolactin; GENE: Stat5a