14432
Although they were not traveling as envoys of U . S . President George W . Bush , they were the first American officials to visit since the nuclear standoff began in October .
 U . S, American, they, envoys of U . S . President George W . Bush, U . S . President, U . S . President George W . Bush, they, the first American officials to visit since the nuclear standoff began in October
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, American, they, envoys of U . S . President George W . Bush, U . S . President, U . S . President George W . Bush, they, the first American officials to visit since the nuclear standoff began in October