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That gave the Southwestern United States , otherwise a desert , abundant rainfall during ice ages , in extreme contrast to most other parts of the world which became exceedingly dry , though the effect of ice sheets in Europe had an analogous effect on the rainfall in Afghanistan , parts of Iran , possibly western Pakistan in winter , as well as North Africa .
 Southwestern United States, Europe, Afghanistan, Iran, Pakistan, North Africa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Southwestern United States, Europe, Afghanistan, Iran, Pakistan, North Africa