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The notable exception to this trend was in Sub-Saharan Africa , the only region where the number of people living in extreme poverty rose from 290 million in 1990 to 414 million in 2010 , comprising more than a third of those living in extreme poverty worldwide .
 Sub-Saharan Africa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sub-Saharan Africa