What do Tributary canyons NOT form, cliffs, gorges, or chasms?
return Tributary canyons ;return what  do #1 form ;return if #2 is cliffs ;return if #2 is gorges ;return if #2 is chasms ;return which is false of #3 ,  #4 ,   #5
['select', 'project', 'boolean', 'boolean', 'boolean', 'comparison']