Mauritania vs African country

Mauritania and African country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mauritania	Yes	No	No	No
African country	Yes	No	No	No

Mauritania (noun)	African country (noun)
a country in northwestern Africa with a provisional military government; achieved independence from France in 1960; largely western Sahara Desert	any one of the countries occupying the African continent