Greek mythology vs Phoebus

Greek mythology and Phoebus both are nouns.

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

Greek mythology (noun)	Phoebus (noun)
the mythology of the ancient Greeks	(Greek mythology) Greek god of light; god of prophecy and poetry and music and healing; son of Zeus and Leto; twin brother of Artemis