1685
BLITZER The secretary of state has written you a letter expressing , apparently , some concern about the length that the prisoners are going to be spending , those detained at the U . S . Naval base at Guantanamo Bay in Cuba , about 600 or so of them .
 U . S, Cuba, state, The secretary of state, you, the prisoners, those detained at the U . S . Naval base at Guantanamo Bay in Cuba, about 600 or so of them, them, the U . S . Naval base at Guantanamo Bay in Cuba, Guantanamo Bay in Cuba
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 U . S, Cuba, state, The secretary of state, you, the prisoners, those detained at the U . S . Naval base at Guantanamo Bay in Cuba, about 600 or so of them, them, the U . S . Naval base at Guantanamo Bay in Cuba, Guantanamo Bay in Cuba