The Red River is a tributary of which U.S.river?
the red river is a tributary of which u.s.river
FreebaseQA-train-15772.P0 FreebaseQA-train-15772.P1
red river red river
red river red river of the south
m.01bl5v m.01bl5v
geography.river.mouth geography.river.mouth
m.04yf_
mississippi river
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mississippi river