chemist vs Soren Peter Lauritz Sorensen

chemist and Soren Peter Lauritz Sorensen both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Soren Peter Lauritz Sorensen	Yes	No	No	No

chemist (noun)	Soren Peter Lauritz Sorensen (noun)
a scientist who specializes in chemistry	Danish chemist who devised the pH scale (1868-1939)
a health professional trained in the art of preparing and dispensing drugs