1921
It remains to be seen how successful Putin ' s overtures to Washington will be in the face of the fervent internal hostility to the US war stance .
 Washington, US, Putin
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:
 Washington, US, Putin