If the rates of erosion and deposition were sufficiently increased, the Grand Canyon could be formed or eroded in a short period of time.
(the rates of erosion and deposition; were sufficiently increased; ) (the Grand Canyon; could be formed; ) (the Grand Canyon; eroded; T:in a short period of time)
the rates of erosion and deposition the Grand Canyon the Grand Canyon
were sufficiently increased could be formed eroded
T:in a short period of time