2844
Finally , since none of the 98 PKU patients tested were found to carry this particular deletion , our study suggests that this molecular event probably occurred recently on the background of a haplotype 2 gene in Portugal . .
 Disease: PKU
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: PKU 
Answer:
 Disease: PKU