48723
In Canada and the United States , the usual written form is " December 7 , 1941 " , spoken as " December seventh , nineteen forty-one " or colloquially " December the seventh , nineteen forty-one " .
 Canada, United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Canada, United States