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She expressed reservations over the eventual winner David Cameron , feeling that he did not , like the other candidates , have a proven track record , and she was later a leading figure in parliamentary opposition to his A-List policy .
 David Cameron
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 David Cameron