Republic of El Salvador vs Organization of American States

Republic of El Salvador and Organization of American States both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of El Salvador	Yes	No	No	No
Organization of American States	Yes	No	No	No

Republic of El Salvador (noun)	Organization of American States (noun)
a republic on the Pacific coast of Central America	an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation