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Plot Hereward is , in Kingsley 's novel , the son of Leofric , Earl of Mercia , and Lady Godiva .
 Hereward, Kingsley, Leofric , Earl of Mercia, Lady Godiva
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hereward, Kingsley, Leofric , Earl of Mercia, Lady Godiva