map length (tiers :: [[ ()->() ]])  =  [2]

length (list :: [ ()->() ])  =  2

allUnique (list :: [ ()->() ])  =  False

ratioRepetitions (list :: [ ()->() ])  =  1 % 2

tiers :: [()->()]  =
  [ [ \x -> case x of
              () -> ()
    , \x -> case x of
              () -> ()
    ]
  ]