Spanish Guinea vs African country

Spanish Guinea and African country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Spanish Guinea	Yes	No	No	No
African country	Yes	No	No	No

Spanish Guinea (noun)	African country (noun)
a country of west central Africa (including islands in the Gulf of Guinea); became independent from Spain in 1968	any one of the countries occupying the African continent