Harold Kroto vs chemist

Harold Kroto and chemist both are nouns.

Word	Noun	Adjective	Verb	Adverb
Harold Kroto	Yes	No	No	No
chemist	Yes	No	No	No

Harold Kroto (noun)	chemist (noun)
British chemist who with Robert Curl and Richard Smalley discovered fullerenes and opened a new branch of chemistry (born in 1939)	a scientist who specializes in chemistry
	a health professional trained in the art of preparing and dispensing drugs