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The first figure is the number of days between date of birth and date of death , allowing for leap days ; in parentheses the same period given in years and days , with the years being the number of whole years the President lived , and the days being the remaining number of days after his last birthday .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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