3820
No direct repeats flank the pseudogene in the U2 / 4 locus .
 GENE: U2 / 4 locus
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: U2 / 4 locus 
Answer:
 GENE: U2 / 4 locus