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For instance , Lady Mary Wortley Montagu , who campaigned for the introduction of inoculation ( then called variolation ) to prevent smallpox , arranged for seven prisoners who had been sentenced to death to undergo variolation in exchange for their life .
 Lady Mary Wortley Montagu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lady Mary Wortley Montagu