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Afterward he moved to Egypt to start a long-term romance with Cleopatra , becoming Caesarion 's " de facto " stepfather .
 Egypt, Cleopatra, Caesarion
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Egypt, Cleopatra, Caesarion