Deforestation leads to erosion, which causes rivers to silt up, which causes flooding.
(Deforestation; leads; to erosion) (erosion; causes; rivers to silt up) Context(erosion causes,List([23, 44))):(rivers; to silt up; )
erosion causes,List([23, 44))
Deforestation erosion rivers
leads causes to silt up
to erosion
rivers to silt up