4538
Analysis of the sequence identified four open reading frames ( ORFs ) which are designated UL1 , UL2 , UL3 , and UL3 . 5 based on their homology with proteins of herpes simplex virus - 1 ( HSV - 1 ) , pseudorabies virus ( PRV ) , equine herpesvirus - 1 , and varicella - zoster virus .
 UL1, UL2, UL3, UL3 . 5
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 UL1, UL2, UL3, UL3 . 5