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The story is told in dual narratives from the points of view of Mary Nisbet , Countess of Elgin , who assisted her husband , British ambassador Lord Elgin , in removing the marbles , and Aspasia , mistress to Pericles , who witnessed the construction of the Parthenon .
 Mary Nisbet, Aspasia, Pericles
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mary Nisbet, Aspasia, Pericles