Britain vs inquiry agent

Britain and inquiry agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Britain	Yes	No	No	No
inquiry agent	Yes	No	No	No

Britain (noun)	inquiry agent (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	a private detective