national capital vs Dutch capital

national capital and Dutch capital both are nouns.

Word	Noun	Adjective	Verb	Adverb
national capital	Yes	No	No	No
Dutch capital	Yes	No	No	No

national capital (noun)	Dutch capital (noun)
the capital city of a nation	an industrial center and the nominal capital of the Netherlands; center of the diamond-cutting industry; seat of an important stock exchange; known for its canals and art museum