Question: What state of Germany was the 2012–13 DFB-Pokal defending champions from?
Sentence (from "Borussia Dortmund"): Ballspielverein Borussia 09 e.V. Dortmund, commonly known as Borussia Dortmund ] , BVB, or simply Dortmund, is a German sports club based in Dortmund, North Rhine-Westphalia ("Borussia" is the Latin equivalent of Prussia).
Relevant evidence: Yes