Placing your hand under the leaves will cause the hopper to run to the upper side of the leaf.
(Placing your hand under the leaves; will cause; the hopper to run to the upper side of the leaf) Context(Placing your hand under the leaves will cause,List([0, 45))):(the hopper; to run; to the upper side of the leaf)
Placing your hand under the leaves will cause,List([0, 45))
Placing your hand under the leaves the hopper
will cause to run
the hopper to run to the upper side of the leaf
to the upper side of the leaf