83664
These bins usually require tractors with large power outputs and are popular on the generally larger and more open fields of the United States and Australia , though usage in Europe is increasing .
 United States, Australia, Europe
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:
 United States, Australia, Europe