Colchis vs Greek mythology

Colchis and Greek mythology both are nouns.

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

Colchis (noun)	Greek mythology (noun)
(Greek mythology) a region on the Black Sea to the south of the Caucasus that was the site of an ancient country where (according to Greek mythology) Jason sought the Golden Fleece	the mythology of the ancient Greeks