8617
A constitutive allele of GPA2 could stimulate growth of a strain lacking both RAS genes .
 GENE: GPA2; GENE: RAS genes
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: GPA2, RAS genes 
Answer:
 GENE: GPA2; GENE: RAS genes