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but hamas had already become an important part of palestinian society through its charity work and its influence increased over time by providing community services when the palestinian authority did not .
 palestinian, the palestinian authority, hamas, an important part of palestinian society, its, its
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 palestinian, the palestinian authority, hamas, an important part of palestinian society, its, its