3087
Sixteen of those picked up from the boat were returned to Cuba but eight were taken to the United States and three to Guantanamo Bay , a U.S. base on Cuba , until they emigrated to another nation .
 Cuba, United States, Guantanamo Bay, U.S., Cuba
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Cuba, United States, Guantanamo Bay, U.S., Cuba