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Said , a U.S. citizen of Palestinian origin , has been an outspoken critic of the 1993 Israeli-PLO self-rule deal and has written at least two books on the accord .
 Palestinian, Said, Israeli-PLO, U.S.
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:
 Palestinian, Said, Israeli-PLO, U.S.