Peru vs South American country

Peru and South American country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Peru	Yes	No	No	No
South American country	Yes	No	No	No

Peru (noun)	South American country (noun)
a republic in western South America; achieved independence from Spain in 1821; was the heart of the Inca empire from the 12th to 16th centuries	any one of the countries occupying the South American continent