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Egypt will tell Britain it is concerned about a meeting of Islamists to be held in London soon , Foreign Minister Amr Moussa said on Monday .
 Islamists, Britain, Egypt, Amr Moussa, London
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Islamists, Britain, Egypt, Amr Moussa, London