Original sentence: His operatic roles included Hunding and Hagen in Der Ring des Nibelungen, Varlaam, Pimen and Boris in Boris Godunov, King Marke in Tristan und Isolde, Prince Ivan Khovansky in Khovanshchina and the title-role in Wozzeck
Edited sentence: His operatic roles included Hunding and Hagen in Der Ring des Nibelungen, Varlaam, Pimen and Boris in Boris Godunov, King Marke in Tristan und Isolde, Prince Ivan Khovansky in Khovanshchina and the crazy Doktor, NOT the title role, in Wozzeck