Saint Paul vs state capital

Saint Paul and state capital both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Paul	Yes	No	No	No
state capital	Yes	No	No	No

Saint Paul (noun)	state capital (noun)
capital of the state of Minnesota; located in southeastern Minnesota on the Mississippi river adjacent to Minneapolis; one of the Twin Cities	the capital city of a political subdivision of a country
(New Testament) a Christian missionary to the Gentiles; author of several Epistles in the New Testament; even though Paul was not present at the Last Supper he is considered an Apostle