Organization of American States vs Cuba

Organization of American States and Cuba both are nouns.

Word	Noun	Adjective	Verb	Adverb
Organization of American States	Yes	No	No	No
Cuba	Yes	No	No	No

Organization of American States (noun)	Cuba (noun)
an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation	a communist state in the Caribbean on the island of Cuba
	the largest island in the West Indies