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according to the united nations , in just three months , the number of palestinians living below the poverty line has risen by 50 % .
 the united nations, the number of palestinians living below the poverty line
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:
 the united nations, the number of palestinians living below the poverty line