Atlantic Ocean vs Sao Tome and Principe

Atlantic Ocean and Sao Tome and Principe both are nouns.

Word	Noun	Adjective	Verb	Adverb
Atlantic Ocean	Yes	No	No	No
Sao Tome and Principe	Yes	No	No	No

Atlantic Ocean (noun)	Sao Tome and Principe (noun)
the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east	island nation in the South Atlantic off the west coast of Africa; achieved independence from Portugal in 1975; has enormous offshore oil reserves