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Many theories have been advanced as to his potential reasons for killing himself , among them poor health ( the discovery that he had Parkinson 's disease ) , a possible illicit love affair , or the shock caused by the suicide of his friend Yukio Mishima in 1970 .
 disease: Parkinson 's disease; person: Yukio Mishima
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 disease: Parkinson 's disease; person: Yukio Mishima