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Not only had he been producing pictures for a decade , but he brought along commitments for films starring his wife , Norma Talmadge , his sister-in-law , Constance Talmadge , and his brother-in-law , Buster Keaton .
 person: Norma Talmadge; person: Constance Talmadge; person: Buster Keaton
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: Norma Talmadge; person: Constance Talmadge; person: Buster Keaton