Beginning at the mouth of the Danube , the filmmakers David Barison and Daniel Ross journey upstream toward the river 's source in Germany .
Germany /location/location/contains Danube
VBG IN DT NN IN DT NNP , DT NNS NNP NNP CC NNP NNP NN RB IN DT NN POS NN IN NNP .
Germany
LOCATION
Danube
LOCATION
/location/location/contains