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Unusually for a politician considered to be Prime Minister , Pitt was not First Lord of the Treasury during the administration , but instead held the post of Lord Privy Seal Chatham was ill with gout for long periods , and his government struggled to fulfill its various goals .
 Pitt, Chatham
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pitt, Chatham