fable vs Aesop's fables

fable and Aesop's fables both are nouns.

Word	Noun	Adjective	Verb	Adverb
fable	Yes	No	No	No
Aesop's fables	Yes	No	No	No

As nouns, Aesop's fables is a hyponym of fable; that is, Aesop's fables is a word with a more specific, narrower meaning than fable:

fable: a short moral story (often with animal characters)
Aesop's fables: a collection of fables believed to have been written by the Greek storyteller Aesop

fable (noun)	Aesop's fables (noun)
a short moral story (often with animal characters)	a collection of fables believed to have been written by the Greek storyteller Aesop
a story about mythical or supernatural beings or events
a deliberately false or improbable account