state capital vs capital of Georgia

state capital and capital of Georgia both are nouns.

Word	Noun	Adjective	Verb	Adverb
state capital	Yes	No	No	No
capital of Georgia	Yes	No	No	No

state capital (noun)	capital of Georgia (noun)
the capital city of a political subdivision of a country	the capital and largest city of Georgia on the Kura river
	state capital and largest city of Georgia; chief commercial center of the southeastern United States; was plundered and burned by Sherman's army during the American Civil War