United Kingdom vs supplementary benefit

United Kingdom and supplementary benefit both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom	Yes	No	No	No
supplementary benefit	Yes	No	No	No

United Kingdom (noun)	supplementary benefit (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	benefits paid to bring incomes up to minimum levels established by law