7443
Mutants lacking any tyrosine residues in the cytoplasmic domain maintain their ability to activate STAT5 and STAT1 but cannot activate STAT3 , implying that STAT5 and STAT1 activation does not require receptor tyrosine phosphorylation .
 GENE: STAT5; GENE: STAT1; GENE: STAT3; GENE: STAT5; GENE: STAT1
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, STAT1, STAT3, STAT5, STAT1 
Answer:
 GENE: STAT5; GENE: STAT1; GENE: STAT3; GENE: STAT5; GENE: STAT1