Complex sentence: Stemann studied German literature and philosophy at the University of Hamburg, he also studied drama, theatre and directing, at the Max-Reinhardt-Seminar in Vienna and at the Theatre Academy in Hamburg with Jürgen Flimm and Christoph Nel.
Split into simpler sentences: Stemann studied German literature and philosophy at the University of Hamburg, and drama, theatre and directing at the Max-Reinhardt-Seminar in Vienna. Later he also studied at the Theatre Academy in Hamburg with Jürgen Flimm and Christoph Nel.