Which major river has its source at the confluence of the rivers Brigach and Breg in the Black Forest?
which major river has its source at the confluence of the rivers brigach and breg in the black forest
FreebaseQA-train-3291.P0 FreebaseQA-train-3291.P1
breg brigach
breg brigach
m.0ltph m.01hf8l
geography.river.mouth geography.river.mouth
m.026zt
danube
m.026zt
danube