St. Lawrence River vs Canada

St. Lawrence River and Canada both are nouns.

Word	Noun	Adjective	Verb	Adverb
St. Lawrence River	Yes	No	No	No
Canada	Yes	No	No	No

St. Lawrence River (noun)	Canada (noun)
a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic	a nation in northern North America; the French were the first Europeans to settle in mainland Canada