Immaculate Conception of the Virgin Mary vs Roman Catholic

Immaculate Conception of the Virgin Mary and Roman Catholic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Immaculate Conception of the Virgin Mary	Yes	No	No	No
Roman Catholic	Yes	Yes	No	No

Immaculate Conception of the Virgin Mary (noun)	Roman Catholic (noun)
(Christianity) the Roman Catholic dogma that God preserved the Virgin Mary from any stain of original sin from the moment she was conceived	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
	a member of the Roman Catholic Church

Immaculate Conception of the Virgin Mary (adjective)	Roman Catholic (adjective)
	of or relating to or supporting Romanism