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Later life After leaving Uganda in 1951 , Pitman and his wife moved to London and during this time Pitman was very active with conservation and preservation groups such as the Elsa Foundation , the Fauna Preservation Society , and the Rare Breeds Survival Trust .
 Pitman, Pitman, Fauna Preservation Society
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pitman, Pitman, Fauna Preservation Society