Demeter vs Greek mythology

Demeter and Greek mythology both are nouns.

Word	Noun	Adjective	Verb	Adverb
Demeter	Yes	No	No	No
Greek mythology	Yes	No	No	No

Demeter (noun)	Greek mythology (noun)
(Greek mythology) goddess of fertility and protector of marriage in ancient mythology; counterpart of Roman Ceres	the mythology of the ancient Greeks