20921
Colombia has one of Latin America 's strongest electoral traditions and little history of military coups but fighting between rival paramilitary groups , government troops and rebel groups has left thousands dead and forced millions to flee their homes .
 Colombia, Latin America 's, thousands, millions
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:
 Colombia, Latin America 's, thousands, millions