29422
The economy was based on large cacao and coffee plantations and logging concessions and the workforce was mostly immigrant contract labour from Liberia , Nigeria , and Cameroun .
 Liberia, Nigeria, Cameroun
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liberia, Nigeria, Cameroun