Organization of American States vs Dominican Republic

Organization of American States and Dominican Republic both are nouns.

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

Organization of American States (noun)	Dominican Republic (noun)
an association including most countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation	a republic in the West Indies; located on the eastern two-thirds of the island of Hispaniola