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Angelman syndrome ( AS ) is caused by chromosome 15q11 - q13 deletions of maternal origin , by paternal uniparental disomy ( UPD ) 15 , by imprinting defects , and by mutations in the UBE3A gene .
 Disease: Angelman syndrome; Disease: AS; Disease: uniparental disomy; Disease: UPD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: Angelman syndrome; Disease: AS; Disease: uniparental disomy; Disease: UPD