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He also had a 12-year relationship with actress Mia Farrow and relationships with Stacey Nelkin and Diane Keaton .
 Mia Farrow, Stacey Nelkin, Diane Keaton
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mia Farrow, Stacey Nelkin, Diane Keaton