Richard Kuhn vs chemist

Richard Kuhn and chemist both are nouns.

Word	Noun	Adjective	Verb	Adverb
Richard Kuhn	Yes	No	No	No
chemist	Yes	No	No	No

Richard Kuhn (noun)	chemist (noun)
Austrian chemist who did research on carotenoids and vitamins (1900-1967)	a scientist who specializes in chemistry
	a health professional trained in the art of preparing and dispensing drugs