5491
Using this method , we were able to select strong enhancer - type activation domains from the immediate early regions of two herpesviruses , namely pseudorabies virus and bovine herpesvirus 1 .
 GENE: immediate early regions
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: immediate early regions 
Answer:
 GENE: immediate early regions