Complex sentence: His work belongs to the very Late stage of the Geometric Style, his vases served as grave markers and libation receptacles for aristocratic graves and as such are decorated with a depiction of the prothesis scene representing the mourning of the deceased.
Split into simpler sentences: His work belongs to the very Late stage of the Geometric Style. His vases served as grave markers and libation receptacles for aristocratic graves and as such are decorated with a depiction of the prothesis scene representing the mourning of the deceased.