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Prader - Willi syndrome ( PWS ) and Angelman syndrome ( AS ) result from the loss of function of imprinted genes in human chromosome 15q11 - q13 .
 Disease: Prader - Willi syndrome; Disease: PWS; Disease: Angelman syndrome; Disease: AS
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: Prader - Willi syndrome, PWS, Angelman syndrome, AS 
Answer:
 Disease: Prader - Willi syndrome; Disease: PWS; Disease: Angelman syndrome; Disease: AS