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In 1958 , in response to the merger of Egypt and Syria in the United Arab Republic , the two Hashemite kingdoms of Iraq and Jordan established the Arab Federation , a confederation of the two states .
 Egypt, Syria, United Arab Republic, Jordan, Arab
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Egypt, Syria, United Arab Republic, Jordan, Arab