2201
Despite fears the mine may be partially nationalized by the new Namibian government following next month 's elections freeing the country from South African control , De Beers engineers are working to extend the mine 's productive life for another 25 years , from the current estimate of 10 .
 Namibian, next month 's, South African, De Beers, another 25 years, 10
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 Namibian, next month 's, South African, De Beers, another 25 years, 10