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The city has the highest cost of living of any city in North Africa , as well as the 50th highest worldwide , as of March 2007 , having gained one position compared to the previous year .
 location: North Africa
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: North Africa