playwright vs Elmer Reizenstein

playwright and Elmer Reizenstein both are nouns.

Word	Noun	Adjective	Verb	Adverb
playwright	Yes	No	No	No
Elmer Reizenstein	Yes	No	No	No

playwright (noun)	Elmer Reizenstein (noun)
someone who writes plays	United States playwright (1892-1967)