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Surrounded by friends including Jack Nicholson , Viggo Mortensen , David Lynch , Michael Madsen , family and fans , he attended its addition to the sidewalk six days later .
 person: Jack Nicholson; person: Viggo Mortensen; person: David Lynch; person: Michael Madsen
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: Jack Nicholson; person: Viggo Mortensen; person: David Lynch; person: Michael Madsen