national capital vs capital of Liechtenstein

national capital and capital of Liechtenstein both are nouns.

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

national capital (noun)	capital of Liechtenstein (noun)
the capital city of a nation	the capital and largest city of Liechtenstein