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He once wrote a letter to Philip , beginning : He was invited one day by Philip to a magnificent entertainment , where the other guests were sumptuously fed , while he himself had nothing but incense and libations , as not being subject to the human infirmity of hunger .
 Philip, Philip
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Philip, Philip