African nation vs Republic of Benin

African nation and Republic of Benin both are nouns.

Word	Noun	Adjective	Verb	Adverb
African nation	Yes	No	No	No
Republic of Benin	Yes	No	No	No

African nation (noun)	Republic of Benin (noun)
any one of the countries occupying the African continent	a country on western coast of Africa; formerly under French control