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His firm also lobbied on behalf of the governments of the Dominican Republic , Equatorial Guinea , Kenya ( earning between $ 660,000 and $ 750,000 each year between 1991 and 1993 ) , and Nigeria ( $ 1 million in 1991 ) .
 Dominican Republic, Equatorial Guinea, Kenya, Nigeria
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:
 Dominican Republic, Equatorial Guinea, Kenya, Nigeria