entity_id,source_id,evidence_type,source_note
ENT_COCYTUS,SRC_HOMER_ILIAD_ODYSSEY,direct attestation,"Odyssey 10.513-514: the river of wailing, a branch of the Styx."
ENT_COCYTUS,SRC_THEOI_HOME,index attestation,"Attested in Theoi Project index (Greek gods, spirits, heroes in classical literature)."
ENT_COCYTUS,SRC_THEOI_UNDERWORLD,index attestation,Literary attestation in classical/mythographic tradition; cult evidence varies by entity.