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In fact , the emperor was more likely motivated by his love for his cousin 's wife , Julia Flavia ( who , as the daughter of his brother Titus , was also his niece ) .
 Julia Flavia, Titus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Julia Flavia, Titus