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In the sentence The United States of America is located in North America the nouns are United States, America, and North America.
The United States of America is on the continent of North America
The United States of America are located in North America.
AKC (United States) ASCA (United States) CPE (United States) FCI (International) NADAC (North America) TDAA (North America) USDAA (North America) UKC (North America) DOCNA (North America)
United States North America