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Palestinian President Yasser Arafat has demanded that Israel release Yassin -- who is confined to a wheelchair -- on humanitarian grounds .
 Yasser Arafat, Yassin, Palestinian, Israel
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:
 Yasser Arafat, Yassin, Palestinian, Israel