2510
Both genes ARO3 and ARO4 are strongly regulated under the general control regulatory system .
 GENE: genes ARO3; GENE: ARO4
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: genes ARO3; GENE: ARO4