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He was Ambassador to South Africa from 1956 to 1959 ; Afghanistan from 1959 to 1962 ; the Philippines from 1969 to 1973 , and Pakistan beginning in 1973 .
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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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