For someone (agent maN-, -um-) to change the direction of an object involved in an action, one's action (theme i-, -on); as flowing water, one's throwing of things, one's looking.
iwīlon
Mangēwel'ah nan danum ta umālih nan puntamūa'.
Change the direction of the (flowing) water so that it will come to where I will work.
-on: iwīlon