id	keyword
ggj-3595	delta
ggj-3595	river
ggj-3595	sea
ggj-3595	water
ggj-3595	area
ggj-3595	flow
ggj-3595	sediment
ggj-3595	changes
ggj-3595	starodubtsev
ggj-3595	black
ggj-3595	river delta
ggj-3595	dnieper
ggj-3595	erosion