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When the book was initially published , it was not revealed that it was a work of fiction , and some were duped by the hoax ; it was launched at a lavish party , with excerpts read by David Bowie and Gore Vidal ( who were in on the joke ) , and a number of prominent members of the art world claimed to remember the artist .
 person: David Bowie; person: Gore Vidal
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:
 person: David Bowie; person: Gore Vidal