capital of Mississippi vs Mississippi

capital of Mississippi and Mississippi both are nouns.

Word	Noun	Adjective	Verb	Adverb
capital of Mississippi	Yes	No	No	No
Mississippi	Yes	No	No	No

capital of Mississippi (noun)	Mississippi (noun)
capital of the state of Mississippi on the Pearl River	a state in the Deep South on the gulf of Mexico; one of the Confederate States during the American Civil War
	a major North American river and the chief river of the United States; rises in northern Minnesota and flows southward into the Gulf of Mexico