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Palestinian officials have turned down a new peace proposal by Israeli Prime Minister Ehud Barak .
 Palestinian, Israeli, Palestinian officials, Israeli Prime Minister, Israeli Prime Minister Ehud Barak
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Palestinian, Israeli, Palestinian officials, Israeli Prime Minister, Israeli Prime Minister Ehud Barak