John Henry vs fictional character

John Henry and fictional character both are nouns.

Word	Noun	Adjective	Verb	Adverb
John Henry	Yes	No	No	No
fictional character	Yes	No	No	No

John Henry (noun)	fictional character (noun)
hero of American folk tales; portrayed as an enormously strong black man who worked on the railroads and died from exhaustion after winning a contest with a steam drill	an imaginary person represented in a work of fiction (play or film or story)