Who defeated Kaiserslautern  in the 1971–72 DFB-Pokal?
1971–72 DFB-Pokal: The 1971–72 DFB-Pokal was the 29th season of the annual German football cup competition. FC Schalke 04: Fußballclub Gelsenkirchen-Schalke 04 e. V., commonly known as FC Schalke 04 (] ), Schalke or abbreviated as S04 (] ), is a professional German association-football club and multi-sports club originally from the district of Gelsenkirchen, North Rhine-Westphalia. FC Schalke 04:  The "04" in the club's name derives from its formation in 1904.
FC Schalke 04