capital of Suriname vs national capital

capital of Suriname and national capital both are nouns.

Word	Noun	Adjective	Verb	Adverb
capital of Suriname	Yes	No	No	No
national capital	Yes	No	No	No

capital of Suriname (noun)	national capital (noun)
the capital and largest city and major port of Surinam	the capital city of a nation