The Fish River performed the function of shaping the lower section of the valley and the Fish River Canyon as we know it today was formed over time.
(The Fish River; performed; the function of shaping the lower section of the valley and the Fish River Canyon) (we; know; it) Context(we know,List([110, 117))):(today; was formed; T:over time)
we know,List([110, 117))
The Fish River we today
performed know was formed
the function of shaping the lower section of the valley and the Fish River Canyon
it
T:over time