-- a) Write a function that takes inputs from stops and vowels and makes
-- 3-tuples of all possible stop-vowel-stop combinations. These will not all
-- correspond to real words in English, although the stop-vowel-stop pattern is
-- common enough that many of them will.
combos = [(a,b,c)
         | a <- stops,
           b <- vowels,
           c <- stops]
combos = [(a,b,c)
         | a <- stops,
           b <- vowels,
           c <- stops]
combos = [(a,b,c)
         | a <- stops,
           b <- vowels,
           c <- stops]