Patroclus vs Greek mythology

Patroclus and Greek mythology both are nouns.

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

Patroclus (noun)	Greek mythology (noun)
(Greek mythology) a friend of Achilles who was killed in the Trojan War; his death led Achilles to return to the fight after his quarrel with Agamemnon	the mythology of the ancient Greeks