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Thus , the occurrence of sensorineural deafness in this patient extends considerably the phenotypic range of piebaldism due to KIT gene mutation in humans and tightens the clinical similarity between piebaldism and the various forms of Waardenburg syndrome . .
 Disease: sensorineural deafness; Disease: piebaldism; Disease: piebaldism; Disease: Waardenburg syndrome
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: sensorineural deafness; Disease: piebaldism; Disease: piebaldism; Disease: Waardenburg syndrome