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The film stars Michael J. Fox , Christopher Lloyd , Lea Thompson , and Thomas F. Wilson .
 person: Michael J. Fox; person: Christopher Lloyd; person: Lea Thompson; person: Thomas F. Wilson
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: Michael J. Fox; person: Christopher Lloyd; person: Lea Thompson; person: Thomas F. Wilson