Complex sentence: In another version, Orpheus played his lyre to put Cerberus, the guardian of Hades to sleep, after which it was granted that Eurydice be allowed to return with him to the world of the living.
Split into simpler sentences: In another version, Orpheus played his lyre to put the guardian of Hades, Cerberus, to sleep. It was then granted that Eurydice be allowed to return with him to the world of the living.