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Today , many commons still exist in England , Wales , Scotland , and the United States , although their extent is much reduced from the millions of acres that existed until the 17th century .
 England, Wales, Scotland, 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:
 England, Wales, Scotland, United States