2566
Maternal nondisjunction with fertilization of a disomic egg by a normal sperm , followed by loss of the paternal 15 , is a likely cause of confined placental mosaicism and uniparental disomy in this case of PWS , and advanced maternal age may be a predisposing factor . .
 Disease: uniparental disomy; Disease: PWS
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: uniparental disomy, PWS 
Answer:
 Disease: uniparental disomy; Disease: PWS