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Those who participated in the event included , Jon Stewart , David Letterman , Tina Fey , Amy Poehler , Nathan Lane , Regis Philbin , Robert De Niro , and Martin Scorsese .
 person: Jon Stewart; person: David Letterman; person: Tina Fey; person: Amy Poehler; person: Nathan Lane; person: Regis Philbin; person: Robert De Niro; person: Martin Scorsese
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: Jon Stewart; person: David Letterman; person: Tina Fey; person: Amy Poehler; person: Nathan Lane; person: Regis Philbin; person: Robert De Niro; person: Martin Scorsese