This causes the rock surface to erode and flake off.
(the rock surface; to flake off; ) (This; causes; the rock surface to erode and flake off) Context(This causes,List([0, 11))):(the rock surface; to erode; )
This causes,List([0, 11))
the rock surface This the rock surface
to flake off causes to erode
the rock surface to erode and flake off