Federative Republic of Brazil vs Feliz Lusitania

Federative Republic of Brazil and Feliz Lusitania both are nouns.

Word	Noun	Adjective	Verb	Adverb
Federative Republic of Brazil	Yes	No	No	No
Feliz Lusitania	Yes	No	No	No

Federative Republic of Brazil (noun)	Feliz Lusitania (noun)
the largest Latin American country and the largest Portuguese speaking country in the world; located in the central and northeastern part of South America; world's leading coffee exporter	port city in northern Brazil in the Amazon delta; main port and commercial center for the Amazon River basin